Home / 7,994.27-11,991.41-2,151.47

Finding the Fourth Proportional to 7,994.27, 11,991.41 and 2,151.47

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Solution

The fourth proportional to 7,994.27, 11,991.41 and 2,151.47 is: 3,227.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,994.27 : 11,991.41 = 2,151.47 : x
  2. Step 2: Convert to fraction form
    7,994.27/11,991.41 = 2,151.47/x
  3. Step 3: Cross multiply
    7,994.27x = 11,991.41 × 2,151.47
  4. Step 4: Simplify right side
    7,994.27x = 25,799,158.87
  5. Step 5: Solve for x
    x = 25,799,158.87/7,994.27
  6. Step 6: Final answer
    x = 3,227.21

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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.