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Finding the Fourth Proportional to 16,882.60, 25,323.90 and 8,115.40

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Solution

The fourth proportional to 16,882.60, 25,323.90 and 8,115.40 is: 12,173.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,882.60 : 25,323.90 = 8,115.40 : x
  2. Step 2: Convert to fraction form
    16,882.60/25,323.90 = 8,115.40/x
  3. Step 3: Cross multiply
    16,882.60x = 25,323.90 × 8,115.40
  4. Step 4: Simplify right side
    16,882.60x = 205,513,578.06
  5. Step 5: Solve for x
    x = 205,513,578.06/16,882.60
  6. Step 6: Final answer
    x = 12,173.10

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.