Set Image duration to match audio audio duration

Hi everyone, 

I'm hoping someone could point me in the right direction.

I have a series of images and audio files that I need to string together into a video (actually a series of videos). Since there are quite a lot of videos, manually adjusting the duration of the image to match the video is quite time consuming. I'm hoping there is a way to simplify this process and automate it. 

As an example, I have 6 videos and 6 images (these values will always equal each other). So I need something like this:

to be arranged into this:

Does anyone know of a way of doing this without manually adjusting them all?

Many thanks in advance