Answer:
6:8       x2
9:12      x3
12:16     x4
15:20    x5
Step-by-step explanation:
Just multiply both of the number by the same number and you will find an equavilant ratio. 
Hope this helps!
*I also added a few different answers so it can give you a clear idea. 
 
        
             
        
        
        
Answer:
whats the other angle
Step-by-step explanation:
 
        
             
        
        
        
The answer is 3x (I need 20 characters to send response so here is random words to fill space baidhevebejdb)
        
                    
             
        
        
        
Answer:
The answer to your question is 2 which means x=2.