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Finding the Fourth Proportional to 16,455.86, 24,687.43 and 7,685.99

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Solution

The fourth proportional to 16,455.86, 24,687.43 and 7,685.99 is: 11,530.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,455.86 : 24,687.43 = 7,685.99 : x
  2. Step 2: Convert to fraction form
    16,455.86/24,687.43 = 7,685.99/x
  3. Step 3: Cross multiply
    16,455.86x = 24,687.43 × 7,685.99
  4. Step 4: Simplify right side
    16,455.86x = 189,747,382.61
  5. Step 5: Solve for x
    x = 189,747,382.61/16,455.86
  6. Step 6: Final answer
    x = 11,530.69

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1.5x scale

Why These Related Problems?

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