## Find the Missing Value of Proportion

Name
Date

1
Find the value of x in the proportion
x :6 = 42:12
2
Find the value of x in the proportion
x :23 = 128:184
3
Find the value of x in the proportion
5:6 = 45: x
4
Find the value of x in the proportion
20:11 = 120: x
5
Find the value of x in the proportion
x :7 = 10:35
6
Find the value of x in the proportion
25: x = 225:117
7
Find the value of x in the proportion
x :22 = 24:176
8
Find the value of x in the proportion
x :24 = 14:48
9
Find the value of x in the proportion
16:5 = x:15
10
Find the value of x in the proportion
2:7 = 18: x

Answers Key
Show All Workout
1
Find the value of x in the proportion
21:6 = 42:12
step 1
Write the given ratios in fraction form
y:6 =
y6
42:12 =
4212
step 2
Find the Means & Extremes
y6
=
4212
x 12 = 42 x 6
Extremes = 12, y
Means = 42, 6
step 3
Rearrange the statement to find y
y =
42 x 612
y = 21
step 4
The missing term in the proportion is 21
Therefore the proportion is 21:6 = 42:12
2
Find the value of x in the proportion
16:23 = 128:184
step 1
Write the given ratios in fraction form
y:23 =
y23
128:184 =
128184
step 2
Find the Means & Extremes
y23
=
128184
x 184 = 128 x 23
Extremes = 184, y
Means = 128, 23
step 3
Rearrange the statement to find y
y =
128 x 23184
y = 16
step 4
The missing term in the proportion is 16
Therefore the proportion is 16:23 = 128:184
3
Find the value of x in the proportion
5:6 = 45:54
step 1
Write the given ratios in fraction form
5:6 =
56
45:y =
45y
step 2
Find the Means & Extremes
56
=
45y
5 x y = 45 x 6
Extremes = 5, y
Means = 45, 6
step 3
Rearrange the statement to find y
y =
45 x 65
y = 54
step 4
The missing term in the proportion is 54
Therefore the proportion is 5:6 = 45:54
4
Find the value of x in the proportion
20:11 = 120:66
step 1
Write the given ratios in fraction form
20:11 =
2011
120:y =
120y
step 2
Find the Means & Extremes
2011
=
120y
20 x y = 120 x 11
Extremes = 20, y
Means = 120, 11
step 3
Rearrange the statement to find y
y =
120 x 1120
y = 66
step 4
The missing term in the proportion is 66
Therefore the proportion is 20:11 = 120:66
5
Find the value of x in the proportion
2:7 = 10:35
step 1
Write the given ratios in fraction form
y:7 =
y7
10:35 =
1035
step 2
Find the Means & Extremes
y7
=
1035
x 35 = 10 x 7
Extremes = 35, y
Means = 10, 7
step 3
Rearrange the statement to find y
y =
10 x 735
y = 2
step 4
The missing term in the proportion is 2
Therefore the proportion is 2:7 = 10:35
6
Find the value of x in the proportion
25: 13 = 225:117
step 1
Write the given ratios in fraction form
25:y =
25y
225:117 =
225117
step 2
Find the Means & Extremes
25y
=
225117
25 x 117 = 225 x y
Extremes = 25, 117
Means = 225, y
step 3
Rearrange the statement to find y
y =
25 x 117225
y = 13
step 4
The missing term in the proportion is 13
Therefore the proportion is 25: 13 = 225:117
7
Find the value of x in the proportion
3:22 = 24:176
step 1
Write the given ratios in fraction form
y:22 =
y22
24:176 =
24176
step 2
Find the Means & Extremes
y22
=
24176
x 176 = 24 x 22
Extremes = 176, y
Means = 24, 22
step 3
Rearrange the statement to find y
y =
24 x 22176
y = 3
step 4
The missing term in the proportion is 3
Therefore the proportion is 3:22 = 24:176
8
Find the value of x in the proportion
7:24 = 14:48
step 1
Write the given ratios in fraction form
y:24 =
y24
14:48 =
1448
step 2
Find the Means & Extremes
y24
=
1448
x 48 = 14 x 24
Extremes = 48, y
Means = 14, 24
step 3
Rearrange the statement to find y
y =
14 x 2448
y = 7
step 4
The missing term in the proportion is 7
Therefore the proportion is 7:24 = 14:48
9
Find the value of x in the proportion
16:5 = 48:15
step 1
Write the given ratios in fraction form
16:5 =
165
y:5 =
y15
step 2
Find the Means & Extremes
165
=
y15
16 x 15 = y x 5
Extremes = 16, 15
Means = 5, y
step 3
Rearrange the statement to find y
y =
16 x 155
y = 48
step 4
The missing term in the proportion is 48
Therefore the proportion is 16:5 = 48:15
10
Find the value of x in the proportion
2:7 = 18:63
step 1
Write the given ratios in fraction form
2:7 =
27
18:y =
18y
step 2
Find the Means & Extremes
27
=
18y
2 x y = 18 x 7
Extremes = 2, y
Means = 18, 7
step 3
Rearrange the statement to find y
y =
18 x 72
y = 63
step 4
The missing term in the proportion is 63
Therefore the proportion is 2:7 = 18:63

# Find the Missing Number in the Proportion Worksheet

Find the missing number in a proportion worksheet with answers for 6th grade math curriculum is available online for free in printable and downloadable (pdf & image) format. Tap on PRINT, PDF or IMAGE button to print or download this grade-6 ratio & proportion worksheet to practice how to find the missing values (mean or extreme) in the given proportions.

How to Use this Worksheet

In this sixth grade ratio & proportion worksheet, students are required to find the missing value of two ratios in proportion. Apply the law of proportion to find the missing number. The law of proportion states that the product of means is always equal to the product of extremes if two ratios are in equivalent, direct variation or proportion. If the ratio A is to B and C is to D is proportional
A : B = C : D
A : B :: C : D
A/B = C/D
A x D = C x B
The product of MEANS = The product of EXTREMES

Find the Missing Term in the Proportion
To find ATo find BTo find CTo find D
A = C x B/DB = A x D/CC = A x D/BD = C x B/A

Answers Key

Teachers, tutors, parents or students can check or validate the solved questions by using the corresponding answers key which comprises the step by step work on how to find the missing value in a proportion.

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