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Finding the Third Proportional to 9,988 and 14,102

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Solution

The third proportional to 9,988 and 14,102 is: 19,910.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,988 : 14,102 = 14,102 : x
  2. Step 2: Convert to fraction form
    9,988/14,102 = 14,102/x
  3. Step 3: Cross multiply
    9,988x = 14,102 × 14,102
  4. Step 4: Simplify right side
    9,988x = 198,866,404
  5. Step 5: Solve for x
    x = 198,866,404/9,988
  6. Step 6: Final answer
    x = 19,910.53

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.