Home / 8,127.20-12,183.60-4,836.80

Finding the Fourth Proportional to 8,127.20, 12,183.60 and 4,836.80

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Solution

The fourth proportional to 8,127.20, 12,183.60 and 4,836.80 is: 7,250.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,127.20 : 12,183.60 = 4,836.80 : x
  2. Step 2: Convert to fraction form
    8,127.20/12,183.60 = 4,836.80/x
  3. Step 3: Cross multiply
    8,127.20x = 12,183.60 × 4,836.80
  4. Step 4: Simplify right side
    8,127.20x = 58,929,636.48
  5. Step 5: Solve for x
    x = 58,929,636.48/8,127.20
  6. Step 6: Final answer
    x = 7,250.92

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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.