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Finding the Fourth Proportional to 8,443.62, 12,665.46 and 2,600.20

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Solution

The fourth proportional to 8,443.62, 12,665.46 and 2,600.20 is: 3,900.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,443.62 : 12,665.46 = 2,600.20 : x
  2. Step 2: Convert to fraction form
    8,443.62/12,665.46 = 2,600.20/x
  3. Step 3: Cross multiply
    8,443.62x = 12,665.46 × 2,600.20
  4. Step 4: Simplify right side
    8,443.62x = 32,932,729.09
  5. Step 5: Solve for x
    x = 32,932,729.09/8,443.62
  6. Step 6: Final answer
    x = 3,900.31

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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.