​The fourth proportional to 4, 9, 12 is: ____________​

Correct option is B

Given:

First number = 4

Second number = 9

Third number  = 12

Formula used:

To find the fourth proportional (d), we use the concept of proportion:

​$$\frac{a}{b} = \frac{c}{d}$$ 

​$$d = \frac{b \times c}{a}$$ 

Solution:

​$$d = \frac{9 \times 12}{4}$$ 

​$$d = \frac{108}{4}$$ 

d = 27 

So, the fourth proportional to 4, 9, and 12 is 27

Thus, correct answer is (b ) 27