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Finding the Fourth Proportional to 7,993.43, 11,993.59 and 4,291.33

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Solution

The fourth proportional to 7,993.43, 11,993.59 and 4,291.33 is: 6,438.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,993.43 : 11,993.59 = 4,291.33 : x
  2. Step 2: Convert to fraction form
    7,993.43/11,993.59 = 4,291.33/x
  3. Step 3: Cross multiply
    7,993.43x = 11,993.59 × 4,291.33
  4. Step 4: Simplify right side
    7,993.43x = 51,468,411.86
  5. Step 5: Solve for x
    x = 51,468,411.86/7,993.43
  6. Step 6: Final answer
    x = 6,438.84

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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.