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Finding the Third Proportional to 6,663 and 13,555

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Solution

The third proportional to 6,663 and 13,555 is: 27,575.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,663 : 13,555 = 13,555 : x
  2. Step 2: Convert to fraction form
    6,663/13,555 = 13,555/x
  3. Step 3: Cross multiply
    6,663x = 13,555 × 13,555
  4. Step 4: Simplify right side
    6,663x = 183,738,025
  5. Step 5: Solve for x
    x = 183,738,025/6,663
  6. Step 6: Final answer
    x = 27,575.87

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.