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Finding the Third Proportional to 7,374 and 11,419

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Solution

The third proportional to 7,374 and 11,419 is: 17,682.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,374 : 11,419 = 11,419 : x
  2. Step 2: Convert to fraction form
    7,374/11,419 = 11,419/x
  3. Step 3: Cross multiply
    7,374x = 11,419 × 11,419
  4. Step 4: Simplify right side
    7,374x = 130,393,561
  5. Step 5: Solve for x
    x = 130,393,561/7,374
  6. Step 6: Final answer
    x = 17,682.88

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.