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Finding the Third Proportional to 14.02 and 15.84

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Solution

The third proportional to 14.02 and 15.84 is: 17.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14.02 : 15.84 = 15.84 : x
  2. Step 2: Convert to fraction form
    14.02/15.84 = 15.84/x
  3. Step 3: Cross multiply
    14.02x = 15.84 × 15.84
  4. Step 4: Simplify right side
    14.02x = 250.91
  5. Step 5: Solve for x
    x = 250.91/14.02
  6. Step 6: Final answer
    x = 17.90

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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.