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Finding the Third Proportional to 9.18 and 12.27

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Solution

The third proportional to 9.18 and 12.27 is: 16.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    9.18 : 12.27 = 12.27 : x
  2. Step 2: Convert to fraction form
    9.18/12.27 = 12.27/x
  3. Step 3: Cross multiply
    9.18x = 12.27 × 12.27
  4. Step 4: Simplify right side
    9.18x = 150.54
  5. Step 5: Solve for x
    x = 150.54/9.18
  6. Step 6: Final answer
    x = 16.41

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.