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Finding the Third Proportional to 9.12 and 13.84

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Solution

The third proportional to 9.12 and 13.84 is: 21.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    9.12 : 13.84 = 13.84 : x
  2. Step 2: Convert to fraction form
    9.12/13.84 = 13.84/x
  3. Step 3: Cross multiply
    9.12x = 13.84 × 13.84
  4. Step 4: Simplify right side
    9.12x = 191.56
  5. Step 5: Solve for x
    x = 191.56/9.12
  6. Step 6: Final answer
    x = 21.01

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.