Question

Find the fourth proportional to 7, 10.5,13

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Answer 1

Answer:

I hope it helps you.

Step-by-step explanation:

let fourth proportional be x

so, 7:10.5 = 13:x

7/10.5 = 13/x

7x = 13×10.5

7x = 136.5

x = 136.5/7

x = 19.5 Ans.

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Answer 2

Answer:

7x=13×10.5

7x=136.5

x=7÷136.5

Step-by-step explanation:

x=19.5