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Finding the Third Proportional to 6.66 and 14.57

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Solution

The third proportional to 6.66 and 14.57 is: 31.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6.66 : 14.57 = 14.57 : x
  2. Step 2: Convert to fraction form
    6.66/14.57 = 14.57/x
  3. Step 3: Cross multiply
    6.66x = 14.57 × 14.57
  4. Step 4: Simplify right side
    6.66x = 212.15
  5. Step 5: Solve for x
    x = 212.15/6.66
  6. Step 6: Final answer
    x = 31.86

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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.