Home / 8,169.20-12,252.65-2,621.83

Finding the Fourth Proportional to 8,169.20, 12,252.65 and 2,621.83

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Solution

The fourth proportional to 8,169.20, 12,252.65 and 2,621.83 is: 3,932.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,169.20 : 12,252.65 = 2,621.83 : x
  2. Step 2: Convert to fraction form
    8,169.20/12,252.65 = 2,621.83/x
  3. Step 3: Cross multiply
    8,169.20x = 12,252.65 × 2,621.83
  4. Step 4: Simplify right side
    8,169.20x = 32,124,371.03
  5. Step 5: Solve for x
    x = 32,124,371.03/8,169.20
  6. Step 6: Final answer
    x = 3,932.37

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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.