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Finding the Third Proportional to 6.75 and 11.11

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Solution

The third proportional to 6.75 and 11.11 is: 18.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6.75 : 11.11 = 11.11 : x
  2. Step 2: Convert to fraction form
    6.75/11.11 = 11.11/x
  3. Step 3: Cross multiply
    6.75x = 11.11 × 11.11
  4. Step 4: Simplify right side
    6.75x = 123.42
  5. Step 5: Solve for x
    x = 123.42/6.75
  6. Step 6: Final answer
    x = 18.28

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Why These Related Problems?

These problems maintain the same ratio (1.65) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.