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Finding the Third Proportional to 10.50 and 14.81

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Solution

The third proportional to 10.50 and 14.81 is: 20.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10.50 : 14.81 = 14.81 : x
  2. Step 2: Convert to fraction form
    10.50/14.81 = 14.81/x
  3. Step 3: Cross multiply
    10.50x = 14.81 × 14.81
  4. Step 4: Simplify right side
    10.50x = 219.41
  5. Step 5: Solve for x
    x = 219.41/10.50
  6. Step 6: Final answer
    x = 20.90

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.