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Finding the Fourth Proportional to 8,362.74, 12,553.20 and 6,288.69

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Solution

The fourth proportional to 8,362.74, 12,553.20 and 6,288.69 is: 9,439.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,362.74 : 12,553.20 = 6,288.69 : x
  2. Step 2: Convert to fraction form
    8,362.74/12,553.20 = 6,288.69/x
  3. Step 3: Cross multiply
    8,362.74x = 12,553.20 × 6,288.69
  4. Step 4: Simplify right side
    8,362.74x = 78,943,183.31
  5. Step 5: Solve for x
    x = 78,943,183.31/8,362.74
  6. Step 6: Final answer
    x = 9,439.87

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1.5x scale

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.