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Finding the Third Proportional to 7.12 and 9.41

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Solution

The third proportional to 7.12 and 9.41 is: 12.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7.12 : 9.41 = 9.41 : x
  2. Step 2: Convert to fraction form
    7.12/9.41 = 9.41/x
  3. Step 3: Cross multiply
    7.12x = 9.41 × 9.41
  4. Step 4: Simplify right side
    7.12x = 88.61
  5. Step 5: Solve for x
    x = 88.61/7.12
  6. Step 6: Final answer
    x = 12.45

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.