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Finding the Fourth Proportional to 8,083.98, 12,121.87 and 3,697.68

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Solution

The fourth proportional to 8,083.98, 12,121.87 and 3,697.68 is: 5,544.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,083.98 : 12,121.87 = 3,697.68 : x
  2. Step 2: Convert to fraction form
    8,083.98/12,121.87 = 3,697.68/x
  3. Step 3: Cross multiply
    8,083.98x = 12,121.87 × 3,697.68
  4. Step 4: Simplify right side
    8,083.98x = 44,822,833.34
  5. Step 5: Solve for x
    x = 44,822,833.34/8,083.98
  6. Step 6: Final answer
    x = 5,544.65

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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.