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Finding the Fourth Proportional to 7,993.87, 11,991.90 and 2,727.47

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Solution

The fourth proportional to 7,993.87, 11,991.90 and 2,727.47 is: 4,091.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,993.87 : 11,991.90 = 2,727.47 : x
  2. Step 2: Convert to fraction form
    7,993.87/11,991.90 = 2,727.47/x
  3. Step 3: Cross multiply
    7,993.87x = 11,991.90 × 2,727.47
  4. Step 4: Simplify right side
    7,993.87x = 32,707,473.90
  5. Step 5: Solve for x
    x = 32,707,473.90/7,993.87
  6. Step 6: Final answer
    x = 4,091.57

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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.