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Finding the Fourth Proportional to 16,515, 24,776.34 and 5,571

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Solution

The fourth proportional to 16,515, 24,776.34 and 5,571 is: 8,357.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,515 : 24,776.34 = 5,571 : x
  2. Step 2: Convert to fraction form
    16,515/24,776.34 = 5,571/x
  3. Step 3: Cross multiply
    16,515x = 24,776.34 × 5,571
  4. Step 4: Simplify right side
    16,515x = 138,028,990.14
  5. Step 5: Solve for x
    x = 138,028,990.14/16,515
  6. Step 6: Final answer
    x = 8,357.80

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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.