Home / 8,187.28-12,282.76-4,487.62

Finding the Fourth Proportional to 8,187.28, 12,282.76 and 4,487.62

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Solution

The fourth proportional to 8,187.28, 12,282.76 and 4,487.62 is: 6,732.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,187.28 : 12,282.76 = 4,487.62 : x
  2. Step 2: Convert to fraction form
    8,187.28/12,282.76 = 4,487.62/x
  3. Step 3: Cross multiply
    8,187.28x = 12,282.76 × 4,487.62
  4. Step 4: Simplify right side
    8,187.28x = 55,120,359.43
  5. Step 5: Solve for x
    x = 55,120,359.43/8,187.28
  6. Step 6: Final answer
    x = 6,732.44

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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.