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Finding the Fourth Proportional to 7,998.61, 11,997.89 and 2,804.48

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Solution

The fourth proportional to 7,998.61, 11,997.89 and 2,804.48 is: 4,206.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,998.61 : 11,997.89 = 2,804.48 : x
  2. Step 2: Convert to fraction form
    7,998.61/11,997.89 = 2,804.48/x
  3. Step 3: Cross multiply
    7,998.61x = 11,997.89 × 2,804.48
  4. Step 4: Simplify right side
    7,998.61x = 33,647,828.52
  5. Step 5: Solve for x
    x = 33,647,828.52/7,998.61
  6. Step 6: Final answer
    x = 4,206.71

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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.