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Finding the Third Proportional to 4,902 and 10,137

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Solution

The third proportional to 4,902 and 10,137 is: 20,962.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,902 : 10,137 = 10,137 : x
  2. Step 2: Convert to fraction form
    4,902/10,137 = 10,137/x
  3. Step 3: Cross multiply
    4,902x = 10,137 × 10,137
  4. Step 4: Simplify right side
    4,902x = 102,758,769
  5. Step 5: Solve for x
    x = 102,758,769/4,902
  6. Step 6: Final answer
    x = 20,962.62

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.