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Finding the Third Proportional to 12,490.88 and 18,700.88

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Solution

The third proportional to 12,490.88 and 18,700.88 is: 27,998.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,490.88 : 18,700.88 = 18,700.88 : x
  2. Step 2: Convert to fraction form
    12,490.88/18,700.88 = 18,700.88/x
  3. Step 3: Cross multiply
    12,490.88x = 18,700.88 × 18,700.88
  4. Step 4: Simplify right side
    12,490.88x = 349,722,725.77
  5. Step 5: Solve for x
    x = 349,722,725.77/12,490.88
  6. Step 6: Final answer
    x = 27,998.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.