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Finding the Fourth Proportional to 7,995.58, 11,990.49 and 3,378.94

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Solution

The fourth proportional to 7,995.58, 11,990.49 and 3,378.94 is: 5,067.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,995.58 : 11,990.49 = 3,378.94 : x
  2. Step 2: Convert to fraction form
    7,995.58/11,990.49 = 3,378.94/x
  3. Step 3: Cross multiply
    7,995.58x = 11,990.49 × 3,378.94
  4. Step 4: Simplify right side
    7,995.58x = 40,515,146.28
  5. Step 5: Solve for x
    x = 40,515,146.28/7,995.58
  6. Step 6: Final answer
    x = 5,067.19

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.