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Finding the Third Proportional to 11.13 and 15.13

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Solution

The third proportional to 11.13 and 15.13 is: 20.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11.13 : 15.13 = 15.13 : x
  2. Step 2: Convert to fraction form
    11.13/15.13 = 15.13/x
  3. Step 3: Cross multiply
    11.13x = 15.13 × 15.13
  4. Step 4: Simplify right side
    11.13x = 228.77
  5. Step 5: Solve for x
    x = 228.77/11.13
  6. Step 6: Final answer
    x = 20.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.