If ₹3.50 : ₹7.50 : : ₹8.26 : x, then what is the value of x?

Correct option is D

Given:

₹3.50 : ₹7.50 : : ₹8.26 : x

Formula Used:

If the numbers a,b,c and d are in proportions then:

a:b::c:d

​$$a \times d = b \times c$$​​

Solution:

Hence the ₹3.50 : ₹7.50 : : ₹8.26 : x are in proportion

So$$x= \frac{7.50 \times 8.26}{3.50} = ₹17.70$$​​