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Finding the Third Proportional to 12,578 and 14,242

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Solution

The third proportional to 12,578 and 14,242 is: 16,126.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,578 : 14,242 = 14,242 : x
  2. Step 2: Convert to fraction form
    12,578/14,242 = 14,242/x
  3. Step 3: Cross multiply
    12,578x = 14,242 × 14,242
  4. Step 4: Simplify right side
    12,578x = 202,834,564
  5. Step 5: Solve for x
    x = 202,834,564/12,578
  6. Step 6: Final answer
    x = 16,126.14

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Why These Related Problems?

These problems maintain the same ratio (1.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.