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Finding the Fourth Proportional to 16,679, 24,985.56 and 12,523.88

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Solution

The fourth proportional to 16,679, 24,985.56 and 12,523.88 is: 18,761.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,679 : 24,985.56 = 12,523.88 : x
  2. Step 2: Convert to fraction form
    16,679/24,985.56 = 12,523.88/x
  3. Step 3: Cross multiply
    16,679x = 24,985.56 × 12,523.88
  4. Step 4: Simplify right side
    16,679x = 312,916,155.17
  5. Step 5: Solve for x
    x = 312,916,155.17/16,679
  6. Step 6: Final answer
    x = 18,761.09

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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.