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Finding the Fourth Proportional to 16,561.20, 24,785.10 and 9,992.10

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Solution

The fourth proportional to 16,561.20, 24,785.10 and 9,992.10 is: 14,953.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,561.20 : 24,785.10 = 9,992.10 : x
  2. Step 2: Convert to fraction form
    16,561.20/24,785.10 = 9,992.10/x
  3. Step 3: Cross multiply
    16,561.20x = 24,785.10 × 9,992.10
  4. Step 4: Simplify right side
    16,561.20x = 247,655,197.71
  5. Step 5: Solve for x
    x = 247,655,197.71/16,561.20
  6. Step 6: Final answer
    x = 14,953.94

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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.