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Finding the Third Proportional to 5.47 and 12.53

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Solution

The third proportional to 5.47 and 12.53 is: 28.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5.47 : 12.53 = 12.53 : x
  2. Step 2: Convert to fraction form
    5.47/12.53 = 12.53/x
  3. Step 3: Cross multiply
    5.47x = 12.53 × 12.53
  4. Step 4: Simplify right side
    5.47x = 157.03
  5. Step 5: Solve for x
    x = 157.03/5.47
  6. Step 6: Final answer
    x = 28.71

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Why These Related Problems?

These problems maintain the same ratio (2.29) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.