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Finding the Fourth Proportional to 7,993.46, 11,988.83 and 3,609.89

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Solution

The fourth proportional to 7,993.46, 11,988.83 and 3,609.89 is: 5,414.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,993.46 : 11,988.83 = 3,609.89 : x
  2. Step 2: Convert to fraction form
    7,993.46/11,988.83 = 3,609.89/x
  3. Step 3: Cross multiply
    7,993.46x = 11,988.83 × 3,609.89
  4. Step 4: Simplify right side
    7,993.46x = 43,278,279.54
  5. Step 5: Solve for x
    x = 43,278,279.54/7,993.46
  6. Step 6: Final answer
    x = 5,414.21

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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.