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Finding the Third Proportional to 11.81 and 18.14

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Solution

The third proportional to 11.81 and 18.14 is: 27.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11.81 : 18.14 = 18.14 : x
  2. Step 2: Convert to fraction form
    11.81/18.14 = 18.14/x
  3. Step 3: Cross multiply
    11.81x = 18.14 × 18.14
  4. Step 4: Simplify right side
    11.81x = 329.08
  5. Step 5: Solve for x
    x = 329.08/11.81
  6. Step 6: Final answer
    x = 27.86

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.