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Finding the Third Proportional to 16 and 18.06

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Solution

The third proportional to 16 and 18.06 is: 20.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    16 : 18.06 = 18.06 : x
  2. Step 2: Convert to fraction form
    16/18.06 = 18.06/x
  3. Step 3: Cross multiply
    16x = 18.06 × 18.06
  4. Step 4: Simplify right side
    16x = 326.25
  5. Step 5: Solve for x
    x = 326.25/16
  6. Step 6: Final answer
    x = 20.39

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Why These Related Problems?

These problems maintain the same ratio (1.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.