Prove this ratio. Help appreciated.

There is a parallelogram called KYLE. Point A divides side YE in a ratio of 4:3; and Point T divides side LE om a ratio of 1:2. Please prove that vector TN (there is an arrow on the top) is only 4/13 TY(there is also another arrow on the top), given this diagram:

http://img338.imageshack.us/img338/205/holdsastory.png

My Attempt: I can get some identities e.g KY=LE, but I have no clue how to solve it.

Edit: Oh and by the way, point N is the point of intersection.

Re: Prove this ratio. Help appreciated.

Is there a problem with the question?