# Ratio - proportion

Reduce the number 16 in proportion
3:2
5:4
11:8

Correct result:

a =  10.6667
b =  12.8
c =  11.6364

#### Solution:

16 = 3:2 • a

1.5a = 16

a = 32/3 ≈ 10.666667

Our simple equation calculator calculates it.

16 = 5:4 • b

1.25b = 16

b = 64/5 = 12.8

Our simple equation calculator calculates it.

16 = 11:8 • c

1.375c = 16

c = 128/11 ≈ 11.636364

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