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Finding the Third Proportional to 5,427 and 8,118.75

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Solution

The third proportional to 5,427 and 8,118.75 is: 12,145.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,427 : 8,118.75 = 8,118.75 : x
  2. Step 2: Convert to fraction form
    5,427/8,118.75 = 8,118.75/x
  3. Step 3: Cross multiply
    5,427x = 8,118.75 × 8,118.75
  4. Step 4: Simplify right side
    5,427x = 65,914,101.56
  5. Step 5: Solve for x
    x = 65,914,101.56/5,427
  6. Step 6: Final answer
    x = 12,145.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.