In x Most scientific calculators have keys for log 10x and In x. To find logarithms to other bases use the equation log a X = In a Find the following logarithms. . . . Find the following logarithm. log : 18 = 1.38998 (Round to five decimal places as needed.) Find the following logarithm, given that log 11 = 4.8. In x = 11.50990 (Round to five decimal places as needed.) Find the following logarithm. log : 0.7 = (Round to five decimal places as needed.)