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Finding the Third Proportional to 5 and 13.06

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Solution

The third proportional to 5 and 13.06 is: 34.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5 : 13.06 = 13.06 : x
  2. Step 2: Convert to fraction form
    5/13.06 = 13.06/x
  3. Step 3: Cross multiply
    5x = 13.06 × 13.06
  4. Step 4: Simplify right side
    5x = 170.63
  5. Step 5: Solve for x
    x = 170.63/5
  6. Step 6: Final answer
    x = 34.13

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Why These Related Problems?

These problems maintain the same ratio (2.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.