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Finding the Third Proportional to 6.67 and 10.66

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Solution

The third proportional to 6.67 and 10.66 is: 17.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6.67 : 10.66 = 10.66 : x
  2. Step 2: Convert to fraction form
    6.67/10.66 = 10.66/x
  3. Step 3: Cross multiply
    6.67x = 10.66 × 10.66
  4. Step 4: Simplify right side
    6.67x = 113.60
  5. Step 5: Solve for x
    x = 113.60/6.67
  6. Step 6: Final answer
    x = 17.02

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.