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Finding the Fourth Proportional to 8,189.93, 12,283.70 and 4,028.82

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Solution

The fourth proportional to 8,189.93, 12,283.70 and 4,028.82 is: 6,042.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,189.93 : 12,283.70 = 4,028.82 : x
  2. Step 2: Convert to fraction form
    8,189.93/12,283.70 = 4,028.82/x
  3. Step 3: Cross multiply
    8,189.93x = 12,283.70 × 4,028.82
  4. Step 4: Simplify right side
    8,189.93x = 49,488,841.78
  5. Step 5: Solve for x
    x = 49,488,841.78/8,189.93
  6. Step 6: Final answer
    x = 6,042.65

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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.