Finding the Fourth Proportional to 16.79, 23.09 and 14.99
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Solution
The fourth proportional to 16.79, 23.09 and 14.99 is: 20.61
Step by Step Solution
- Step 1: Write the proportion equation
16.79 : 23.09 = 14.99 : x - Step 2: Convert to fraction form
16.79/23.09 = 14.99/x - Step 3: Cross multiply
16.79x = 23.09 × 14.99 - Step 4: Simplify right side
16.79x = 345.93 - Step 5: Solve for x
x = 345.93/16.79 - Step 6: Final answer
x = 20.61
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.