Answer: yes you are right hope this helped 
plz make brainly
Step-by-step explanation:
 
        
                    
             
        
        
        
 This is a ratio problem; the ratio of the length to width is constant (and therefore equal):
 4 /6 = 15 / x
 
Now, with a ratio, we may do any allowable algebra operation: cross-multiply, invert both sides, multiply or divide both sides by the same amount, etc.
 
Let's cross-multiply:
 4x = (15)(6)
 x = 90/4
 x = 22.5 in.
 
        
             
        
        
        
        
The solution is x=16. hope it helps