Home / 8,255.36-12,382.90-3,324.88

Finding the Fourth Proportional to 8,255.36, 12,382.90 and 3,324.88

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Solution

The fourth proportional to 8,255.36, 12,382.90 and 3,324.88 is: 4,987.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,255.36 : 12,382.90 = 3,324.88 : x
  2. Step 2: Convert to fraction form
    8,255.36/12,382.90 = 3,324.88/x
  3. Step 3: Cross multiply
    8,255.36x = 12,382.90 × 3,324.88
  4. Step 4: Simplify right side
    8,255.36x = 41,171,656.55
  5. Step 5: Solve for x
    x = 41,171,656.55/8,255.36
  6. Step 6: Final answer
    x = 4,987.26

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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.