Home / 18,845.20-28,236.36-8,299.52

Finding the Fourth Proportional to 18,845.20, 28,236.36 and 8,299.52

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Solution

The fourth proportional to 18,845.20, 28,236.36 and 8,299.52 is: 12,435.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,845.20 : 28,236.36 = 8,299.52 : x
  2. Step 2: Convert to fraction form
    18,845.20/28,236.36 = 8,299.52/x
  3. Step 3: Cross multiply
    18,845.20x = 28,236.36 × 8,299.52
  4. Step 4: Simplify right side
    18,845.20x = 234,348,234.55
  5. Step 5: Solve for x
    x = 234,348,234.55/18,845.20
  6. Step 6: Final answer
    x = 12,435.43

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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.