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Finding the Third Proportional to 7,149.75 and 10,314.75

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Solution

The third proportional to 7,149.75 and 10,314.75 is: 14,880.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,149.75 : 10,314.75 = 10,314.75 : x
  2. Step 2: Convert to fraction form
    7,149.75/10,314.75 = 10,314.75/x
  3. Step 3: Cross multiply
    7,149.75x = 10,314.75 × 10,314.75
  4. Step 4: Simplify right side
    7,149.75x = 106,394,067.56
  5. Step 5: Solve for x
    x = 106,394,067.56/7,149.75
  6. Step 6: Final answer
    x = 14,880.81

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.