Answer :

Answer: 78

Step-by-step explanation:before i start anythying I PUT X AT THE EMPTY PLACE TO SOLVE FOR IT

13/2= x/12

i. cross multiply

13*12 =2*x

156=2x

156/2=2x/2

x=78 and that it

I HOPE YOU UNDERSTAND MY EXPLANATION

The missing number in proportion 13/2 = ?/12 is 78.

What is proportion?

A percentage is a mathematical expression in which two ratios are specified to be equal.

How to find the missing number?

The given proportion is 13/2 = ?/12.

We have to find the missing number here.

Let x be the missing number

Multiply 12 on both sides of equality.

[tex]12 \times \frac{13}{2} = 12\times \frac{x}{12}[/tex]

6×13= x

    x= 78

Hence the missing number is 78.

Learn more about proportion here: https://brainly.com/question/2548537

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