Home / 8,061.87-12,090.65-2,218.80

Finding the Fourth Proportional to 8,061.87, 12,090.65 and 2,218.80

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Solution

The fourth proportional to 8,061.87, 12,090.65 and 2,218.80 is: 3,327.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,061.87 : 12,090.65 = 2,218.80 : x
  2. Step 2: Convert to fraction form
    8,061.87/12,090.65 = 2,218.80/x
  3. Step 3: Cross multiply
    8,061.87x = 12,090.65 × 2,218.80
  4. Step 4: Simplify right side
    8,061.87x = 26,826,723.13
  5. Step 5: Solve for x
    x = 26,826,723.13/8,061.87
  6. Step 6: Final answer
    x = 3,327.61

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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.