Home / 8,240.85-12,365.19-3,313.89

Finding the Fourth Proportional to 8,240.85, 12,365.19 and 3,313.89

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Solution

The fourth proportional to 8,240.85, 12,365.19 and 3,313.89 is: 4,972.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,240.85 : 12,365.19 = 3,313.89 : x
  2. Step 2: Convert to fraction form
    8,240.85/12,365.19 = 3,313.89/x
  3. Step 3: Cross multiply
    8,240.85x = 12,365.19 × 3,313.89
  4. Step 4: Simplify right side
    8,240.85x = 40,976,879.49
  5. Step 5: Solve for x
    x = 40,976,879.49/8,240.85
  6. Step 6: Final answer
    x = 4,972.41

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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.