State tax filing

@AmyC   Thanks for the taking the time to answer my question.  Greatly appreciate it. 

Just want to make sure because the enter the Utah "portion" of the following income is really throwing me off.  Me trying to understand this, it would imply that "portion" in a fraction of the federal income of $13.5k  or less than $13.5k  However my Utah rental income was $21398    Is it correct to continue as shown in the image