I think your missing a 1 in your 5th gear.Register on Kia Global Tech and you'll be able to find the answers to your own questions!
Kia Global Information System (KGIS)
Once you register go to "service Info" and hit the drop down. click on Forte, click on your year and engine...then click on manual transaxle, information, specs, and all the data on ratios will appear...LoL!
Like this (but looks better on the Kia site...LoL!):
Manual transaxle type
Final gear ratio
T/M oil capacity※
1.75ℓ (1.85 US qt, 1.54 lmp qt
FYI: 2010 and 2011 show same gear ratios.