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Finding the Fourth Proportional to 14,436, 21,591.44 and 8,498.74

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Solution

The fourth proportional to 14,436, 21,591.44 and 8,498.74 is: 12,711.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,436 : 21,591.44 = 8,498.74 : x
  2. Step 2: Convert to fraction form
    14,436/21,591.44 = 8,498.74/x
  3. Step 3: Cross multiply
    14,436x = 21,591.44 × 8,498.74
  4. Step 4: Simplify right side
    14,436x = 183,500,034.79
  5. Step 5: Solve for x
    x = 183,500,034.79/14,436
  6. Step 6: Final answer
    x = 12,711.28

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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.