Home / 8,085.87-12,119.09-4,387.95

Finding the Fourth Proportional to 8,085.87, 12,119.09 and 4,387.95

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Solution

The fourth proportional to 8,085.87, 12,119.09 and 4,387.95 is: 6,576.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,085.87 : 12,119.09 = 4,387.95 : x
  2. Step 2: Convert to fraction form
    8,085.87/12,119.09 = 4,387.95/x
  3. Step 3: Cross multiply
    8,085.87x = 12,119.09 × 4,387.95
  4. Step 4: Simplify right side
    8,085.87x = 53,177,939.03
  5. Step 5: Solve for x
    x = 53,177,939.03/8,085.87
  6. Step 6: Final answer
    x = 6,576.65

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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.