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Finding the Third Proportional to 10.88 and 14.81

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Solution

The third proportional to 10.88 and 14.81 is: 20.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10.88 : 14.81 = 14.81 : x
  2. Step 2: Convert to fraction form
    10.88/14.81 = 14.81/x
  3. Step 3: Cross multiply
    10.88x = 14.81 × 14.81
  4. Step 4: Simplify right side
    10.88x = 219.41
  5. Step 5: Solve for x
    x = 219.41/10.88
  6. Step 6: Final answer
    x = 20.18

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.