First, let's look at the ratio.
You also know that for every 8 indoor events, there is 3 field events.
Therefore, the amount of indoor events is 8 on 11 events total, as 8 + 3 = 11
Then, let's look at the actual number of events. If there is 22 events total, you need to solve this proportion :
[tex] \frac{8}{11} = \frac{?}{22} [/tex]