Home / 8,443.20-12,666.96-3,247.68

Finding the Fourth Proportional to 8,443.20, 12,666.96 and 3,247.68

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Solution

The fourth proportional to 8,443.20, 12,666.96 and 3,247.68 is: 4,872.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,443.20 : 12,666.96 = 3,247.68 : x
  2. Step 2: Convert to fraction form
    8,443.20/12,666.96 = 3,247.68/x
  3. Step 3: Cross multiply
    8,443.20x = 12,666.96 × 3,247.68
  4. Step 4: Simplify right side
    8,443.20x = 41,138,232.65
  5. Step 5: Solve for x
    x = 41,138,232.65/8,443.20
  6. Step 6: Final answer
    x = 4,872.35

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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.