Question

iii.
Find the fourth proportion to 15, 12, and 25
Ans:​

Answer 1

$\huge\red{\underline{\tt{Given :-}}}$

Find the fourth proportion to 15, 12, and 25.

$\huge\pink{\underline{\tt{To find :-}}}$

The fourth proportional.

We consider 4th proportional as x.

$\frac{15}{12} \times \frac{25}{x}$

$15 \times x = 25 \times 12$

$15x = 300$

$x = \frac{300}{15}$

$x = 20$

☆ Therefore ☆

Fourth proportional is 20.

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