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Finding the Third Proportional to 4,903 and 10,129

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Solution

The third proportional to 4,903 and 10,129 is: 20,925.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,903 : 10,129 = 10,129 : x
  2. Step 2: Convert to fraction form
    4,903/10,129 = 10,129/x
  3. Step 3: Cross multiply
    4,903x = 10,129 × 10,129
  4. Step 4: Simplify right side
    4,903x = 102,596,641
  5. Step 5: Solve for x
    x = 102,596,641/4,903
  6. Step 6: Final answer
    x = 20,925.28

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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.