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Finding the Third Proportional to 12.45 and 16.52

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Solution

The third proportional to 12.45 and 16.52 is: 21.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12.45 : 16.52 = 16.52 : x
  2. Step 2: Convert to fraction form
    12.45/16.52 = 16.52/x
  3. Step 3: Cross multiply
    12.45x = 16.52 × 16.52
  4. Step 4: Simplify right side
    12.45x = 273.02
  5. Step 5: Solve for x
    x = 273.02/12.45
  6. Step 6: Final answer
    x = 21.94

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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.