Need to get value as it relates to a change in ratio

I'm not sure if I'm asking this question right, but I'm trying to figure out how to convert from one ratio to another and change a value (X) as a result of that change.

For instance, if X = 5 for the ratio 1/4, how do I figure out what would X be if that ratio was changed to 1/10?

Re: How to convert results of one ratio into another?

First of all, 1/4 is not a ratio, it's a fraction. It means that for every four parts of something, there is one part of one commodity and three parts of another...

Now, which commodity does the x = 5 represent? The first which has one part, or the second which has three parts?

Re: How to convert results of one ratio into another?

X actually represents the distance from a point of entry in a Futures contract. In the ES market, it's 4 ticks per point, hence 1/4 and I know that 5 ticks past a certain point works with a 4 ticks market. In the TF market, it's 10 ticks per point, hence 1/10. I need to convert between these so that I know what is equivalent per market depending on the number of ticks per point. Sadly, it has been a while since I really worked with fractions, so I'm stuck on this.

Thanks!