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Finding the Third Proportional to 12.55 and 16.73

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Solution

The third proportional to 12.55 and 16.73 is: 22.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12.55 : 16.73 = 16.73 : x
  2. Step 2: Convert to fraction form
    12.55/16.73 = 16.73/x
  3. Step 3: Cross multiply
    12.55x = 16.73 × 16.73
  4. Step 4: Simplify right side
    12.55x = 279.94
  5. Step 5: Solve for x
    x = 279.94/12.55
  6. Step 6: Final answer
    x = 22.31

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.