Home / 8,007.20-12,010.08-2,812.76

Finding the Fourth Proportional to 8,007.20, 12,010.08 and 2,812.76

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Solution

The fourth proportional to 8,007.20, 12,010.08 and 2,812.76 is: 4,218.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,007.20 : 12,010.08 = 2,812.76 : x
  2. Step 2: Convert to fraction form
    8,007.20/12,010.08 = 2,812.76/x
  3. Step 3: Cross multiply
    8,007.20x = 12,010.08 × 2,812.76
  4. Step 4: Simplify right side
    8,007.20x = 33,781,472.62
  5. Step 5: Solve for x
    x = 33,781,472.62/8,007.20
  6. Step 6: Final answer
    x = 4,218.89

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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.