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Finding the Fourth Proportional to 16,115.70, 22,241.88 and 9,042.54

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Solution

The fourth proportional to 16,115.70, 22,241.88 and 9,042.54 is: 12,479.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,115.70 : 22,241.88 = 9,042.54 : x
  2. Step 2: Convert to fraction form
    16,115.70/22,241.88 = 9,042.54/x
  3. Step 3: Cross multiply
    16,115.70x = 22,241.88 × 9,042.54
  4. Step 4: Simplify right side
    16,115.70x = 201,123,089.58
  5. Step 5: Solve for x
    x = 201,123,089.58/16,115.70
  6. Step 6: Final answer
    x = 12,479.95

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.