Home / 8,331.48-12,491.10-3,943.80

Finding the Fourth Proportional to 8,331.48, 12,491.10 and 3,943.80

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Solution

The fourth proportional to 8,331.48, 12,491.10 and 3,943.80 is: 5,912.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,331.48 : 12,491.10 = 3,943.80 : x
  2. Step 2: Convert to fraction form
    8,331.48/12,491.10 = 3,943.80/x
  3. Step 3: Cross multiply
    8,331.48x = 12,491.10 × 3,943.80
  4. Step 4: Simplify right side
    8,331.48x = 49,262,400.18
  5. Step 5: Solve for x
    x = 49,262,400.18/8,331.48
  6. Step 6: Final answer
    x = 5,912.80

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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.