Finding the Fourth Proportional to 18.93, 26.10 and 16.99
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Solution
The fourth proportional to 18.93, 26.10 and 16.99 is: 23.43
Step by Step Solution
- Step 1: Write the proportion equation
18.93 : 26.10 = 16.99 : x - Step 2: Convert to fraction form
18.93/26.10 = 16.99/x - Step 3: Cross multiply
18.93x = 26.10 × 16.99 - Step 4: Simplify right side
18.93x = 443.44 - Step 5: Solve for x
x = 443.44/18.93 - Step 6: Final answer
x = 23.43
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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.