Home / 8,003.28-12,002.88-3,324.66

Finding the Fourth Proportional to 8,003.28, 12,002.88 and 3,324.66

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Solution

The fourth proportional to 8,003.28, 12,002.88 and 3,324.66 is: 4,986.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,003.28 : 12,002.88 = 3,324.66 : x
  2. Step 2: Convert to fraction form
    8,003.28/12,002.88 = 3,324.66/x
  3. Step 3: Cross multiply
    8,003.28x = 12,002.88 × 3,324.66
  4. Step 4: Simplify right side
    8,003.28x = 39,905,495.02
  5. Step 5: Solve for x
    x = 39,905,495.02/8,003.28
  6. Step 6: Final answer
    x = 4,986.14

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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.