Home / 8,083.20-12,109.60-4,609.92

Finding the Fourth Proportional to 8,083.20, 12,109.60 and 4,609.92

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Solution

The fourth proportional to 8,083.20, 12,109.60 and 4,609.92 is: 6,906.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,083.20 : 12,109.60 = 4,609.92 : x
  2. Step 2: Convert to fraction form
    8,083.20/12,109.60 = 4,609.92/x
  3. Step 3: Cross multiply
    8,083.20x = 12,109.60 × 4,609.92
  4. Step 4: Simplify right side
    8,083.20x = 55,824,287.23
  5. Step 5: Solve for x
    x = 55,824,287.23/8,083.20
  6. Step 6: Final answer
    x = 6,906.21

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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.