I’m on khan academy(6th grade math) and I’m confused so here’s the question 
 “ Hanna is recovering hundreds of treasure chests from an ancient shipwreck. She is able to recover 8 chest every 4 hours
 Complete the table using equivalent ratios.”
 The table is:
 8 chests every 4 hours 
 12 chests every 6 hours
 10 chests every _(blank)_ hours
 So yea I did the middle one myself but I’m stuck on the last one