Home / 8,286.48-12,418.11-4,122.54

Finding the Fourth Proportional to 8,286.48, 12,418.11 and 4,122.54

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Solution

The fourth proportional to 8,286.48, 12,418.11 and 4,122.54 is: 6,178.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,286.48 : 12,418.11 = 4,122.54 : x
  2. Step 2: Convert to fraction form
    8,286.48/12,418.11 = 4,122.54/x
  3. Step 3: Cross multiply
    8,286.48x = 12,418.11 × 4,122.54
  4. Step 4: Simplify right side
    8,286.48x = 51,194,155.20
  5. Step 5: Solve for x
    x = 51,194,155.20/8,286.48
  6. Step 6: Final answer
    x = 6,178.03

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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.