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Finding the Third Proportional to 7,279.88 and 9,456.75

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Solution

The third proportional to 7,279.88 and 9,456.75 is: 12,284.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,279.88 : 9,456.75 = 9,456.75 : x
  2. Step 2: Convert to fraction form
    7,279.88/9,456.75 = 9,456.75/x
  3. Step 3: Cross multiply
    7,279.88x = 9,456.75 × 9,456.75
  4. Step 4: Simplify right side
    7,279.88x = 89,430,120.56
  5. Step 5: Solve for x
    x = 89,430,120.56/7,279.88
  6. Step 6: Final answer
    x = 12,284.57

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Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.