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Finding the Fourth Proportional to 17,897.85, 24,699.06 and 9,939.87

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Solution

The fourth proportional to 17,897.85, 24,699.06 and 9,939.87 is: 13,717.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,897.85 : 24,699.06 = 9,939.87 : x
  2. Step 2: Convert to fraction form
    17,897.85/24,699.06 = 9,939.87/x
  3. Step 3: Cross multiply
    17,897.85x = 24,699.06 × 9,939.87
  4. Step 4: Simplify right side
    17,897.85x = 245,505,445.52
  5. Step 5: Solve for x
    x = 245,505,445.52/17,897.85
  6. Step 6: Final answer
    x = 13,717.04

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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.