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Finding the Fourth Proportional to 16,781.74, 25,176.72 and 8,352.20

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Solution

The fourth proportional to 16,781.74, 25,176.72 and 8,352.20 is: 12,530.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,781.74 : 25,176.72 = 8,352.20 : x
  2. Step 2: Convert to fraction form
    16,781.74/25,176.72 = 8,352.20/x
  3. Step 3: Cross multiply
    16,781.74x = 25,176.72 × 8,352.20
  4. Step 4: Simplify right side
    16,781.74x = 210,281,000.78
  5. Step 5: Solve for x
    x = 210,281,000.78/16,781.74
  6. Step 6: Final answer
    x = 12,530.35

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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.