This is another small App & a useful tool developed by TALO tech for the interpolation & extrapolation calculations which is known also as [Pro rata (proportionate allocation)], which is common between Engineers, Accounts & Estimators fields
Extrapolation is an estimation of a value based on extending a known sequence of values beyond the area that is certainly known.
Interpolation is an estimation of a value within two known values in a sequence of values.
Finally we hope that this tool is useful for you..