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Finding the Third Proportional to 11.15 and 26.29

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Solution

The third proportional to 11.15 and 26.29 is: 62.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11.15 : 26.29 = 26.29 : x
  2. Step 2: Convert to fraction form
    11.15/26.29 = 26.29/x
  3. Step 3: Cross multiply
    11.15x = 26.29 × 26.29
  4. Step 4: Simplify right side
    11.15x = 691.35
  5. Step 5: Solve for x
    x = 691.35/11.15
  6. Step 6: Final answer
    x = 62.00

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.