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Finding the Third Proportional to 9,489 and 14,907

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Solution

The third proportional to 9,489 and 14,907 is: 23,418.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,489 : 14,907 = 14,907 : x
  2. Step 2: Convert to fraction form
    9,489/14,907 = 14,907/x
  3. Step 3: Cross multiply
    9,489x = 14,907 × 14,907
  4. Step 4: Simplify right side
    9,489x = 222,218,649
  5. Step 5: Solve for x
    x = 222,218,649/9,489
  6. Step 6: Final answer
    x = 23,418.55

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.