One way:

=VLOOKUP(I10, INDIRECT(VLOOKUP(D10, $M$1:$N$9,2)),2,FALSE)

where

M N
1 0.5 Table_A
2 0.74 Table_B
3 ...


In article ,
Serge wrote:

This formula below works as shown
=IF(D10=0.5,(VLOOKUP(I10,Table_A,2,0))). the result is shown in 'J10'

But 'D10' has 9 possibilities and 'I10' has to look up 9 tables; Table_A
through Table_I which are in sheet three. for each possibility there is a
table for the answer.

Can someone help with this please.
Thanks in advance