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Finding the Third Proportional to 13,479 and 14,991

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Solution

The third proportional to 13,479 and 14,991 is: 16,672.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,479 : 14,991 = 14,991 : x
  2. Step 2: Convert to fraction form
    13,479/14,991 = 14,991/x
  3. Step 3: Cross multiply
    13,479x = 14,991 × 14,991
  4. Step 4: Simplify right side
    13,479x = 224,730,081
  5. Step 5: Solve for x
    x = 224,730,081/13,479
  6. Step 6: Final answer
    x = 16,672.61

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Why These Related Problems?

These problems maintain the same ratio (1.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.