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Finding the Fourth Proportional to 16,115.88, 22,241.16 and 9,042.96

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Solution

The fourth proportional to 16,115.88, 22,241.16 and 9,042.96 is: 12,479.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,115.88 : 22,241.16 = 9,042.96 : x
  2. Step 2: Convert to fraction form
    16,115.88/22,241.16 = 9,042.96/x
  3. Step 3: Cross multiply
    16,115.88x = 22,241.16 × 9,042.96
  4. Step 4: Simplify right side
    16,115.88x = 201,125,920.23
  5. Step 5: Solve for x
    x = 201,125,920.23/16,115.88
  6. Step 6: Final answer
    x = 12,479.98

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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.