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Finding the Third Proportional to 9,912.94 and 15,381.56

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Solution

The third proportional to 9,912.94 and 15,381.56 is: 23,867.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,912.94 : 15,381.56 = 15,381.56 : x
  2. Step 2: Convert to fraction form
    9,912.94/15,381.56 = 15,381.56/x
  3. Step 3: Cross multiply
    9,912.94x = 15,381.56 × 15,381.56
  4. Step 4: Simplify right side
    9,912.94x = 236,592,464.94
  5. Step 5: Solve for x
    x = 236,592,464.94/9,912.94
  6. Step 6: Final answer
    x = 23,867.04

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.