Question

1: 3 = 1 2/3: x. The value of x is?​

Answer 1

product of extreme = product of mean

1 : 3 = 12 / 3 : x

$1 \times x = 3 \times \frac{12}{3} \\ x = 12$

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Answer 2

Concept

A ratio in mathematics indicates how many times one number contains another. For example, if a bowl of fruit contains eight oranges and six lemons, the orange-to-lemon ratio is eight to six (that is, 8:6, which is equivalent to the ratio 4:3).

Given

1: 3 = 1 2/3: x

Find

We are asked to find the value of x

Solution

$1:3=12/3:x\\1:3=4:x\\\frac{1}{3}=\frac{4}{x} \\x=12$

Hence the value of x=12