Home / 8,229.20-12,334.20-4,331.60

Finding the Fourth Proportional to 8,229.20, 12,334.20 and 4,331.60

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Solution

The fourth proportional to 8,229.20, 12,334.20 and 4,331.60 is: 6,492.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,229.20 : 12,334.20 = 4,331.60 : x
  2. Step 2: Convert to fraction form
    8,229.20/12,334.20 = 4,331.60/x
  3. Step 3: Cross multiply
    8,229.20x = 12,334.20 × 4,331.60
  4. Step 4: Simplify right side
    8,229.20x = 53,426,820.72
  5. Step 5: Solve for x
    x = 53,426,820.72/8,229.20
  6. Step 6: Final answer
    x = 6,492.35

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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.