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Finding the Fourth Proportional to 14,363.76, 21,508.11 and 13,487.88

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Solution

The fourth proportional to 14,363.76, 21,508.11 and 13,487.88 is: 20,196.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,363.76 : 21,508.11 = 13,487.88 : x
  2. Step 2: Convert to fraction form
    14,363.76/21,508.11 = 13,487.88/x
  3. Step 3: Cross multiply
    14,363.76x = 21,508.11 × 13,487.88
  4. Step 4: Simplify right side
    14,363.76x = 290,098,806.71
  5. Step 5: Solve for x
    x = 290,098,806.71/14,363.76
  6. Step 6: Final answer
    x = 20,196.58

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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.