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Finding the Third Proportional to 6.81 and 14.91

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Solution

The third proportional to 6.81 and 14.91 is: 32.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6.81 : 14.91 = 14.91 : x
  2. Step 2: Convert to fraction form
    6.81/14.91 = 14.91/x
  3. Step 3: Cross multiply
    6.81x = 14.91 × 14.91
  4. Step 4: Simplify right side
    6.81x = 222.20
  5. Step 5: Solve for x
    x = 222.20/6.81
  6. Step 6: Final answer
    x = 32.62

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.