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Finding the Fourth Proportional to 8,260.70, 11,401.01 and 5,278.52

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Solution

The fourth proportional to 8,260.70, 11,401.01 and 5,278.52 is: 7,285.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,260.70 : 11,401.01 = 5,278.52 : x
  2. Step 2: Convert to fraction form
    8,260.70/11,401.01 = 5,278.52/x
  3. Step 3: Cross multiply
    8,260.70x = 11,401.01 × 5,278.52
  4. Step 4: Simplify right side
    8,260.70x = 60,180,375.91
  5. Step 5: Solve for x
    x = 60,180,375.91/8,260.70
  6. Step 6: Final answer
    x = 7,285.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.