Home / 8,240.72-12,363.39-3,313.85

Finding the Fourth Proportional to 8,240.72, 12,363.39 and 3,313.85

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Solution

The fourth proportional to 8,240.72, 12,363.39 and 3,313.85 is: 4,971.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,240.72 : 12,363.39 = 3,313.85 : x
  2. Step 2: Convert to fraction form
    8,240.72/12,363.39 = 3,313.85/x
  3. Step 3: Cross multiply
    8,240.72x = 12,363.39 × 3,313.85
  4. Step 4: Simplify right side
    8,240.72x = 40,970,358.13
  5. Step 5: Solve for x
    x = 40,970,358.13/8,240.72
  6. Step 6: Final answer
    x = 4,971.70

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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.