Home / 8,230.80-12,345.96-3,613.68

Finding the Fourth Proportional to 8,230.80, 12,345.96 and 3,613.68

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Solution

The fourth proportional to 8,230.80, 12,345.96 and 3,613.68 is: 5,420.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,230.80 : 12,345.96 = 3,613.68 : x
  2. Step 2: Convert to fraction form
    8,230.80/12,345.96 = 3,613.68/x
  3. Step 3: Cross multiply
    8,230.80x = 12,345.96 × 3,613.68
  4. Step 4: Simplify right side
    8,230.80x = 44,614,348.73
  5. Step 5: Solve for x
    x = 44,614,348.73/8,230.80
  6. Step 6: Final answer
    x = 5,420.41

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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.