Home / 8,227.32-12,351.91-3,847.85

Finding the Fourth Proportional to 8,227.32, 12,351.91 and 3,847.85

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Solution

The fourth proportional to 8,227.32, 12,351.91 and 3,847.85 is: 5,776.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,227.32 : 12,351.91 = 3,847.85 : x
  2. Step 2: Convert to fraction form
    8,227.32/12,351.91 = 3,847.85/x
  3. Step 3: Cross multiply
    8,227.32x = 12,351.91 × 3,847.85
  4. Step 4: Simplify right side
    8,227.32x = 47,528,296.89
  5. Step 5: Solve for x
    x = 47,528,296.89/8,227.32
  6. Step 6: Final answer
    x = 5,776.89

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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.