Home / 8,338.30-12,507.99-2,791.42

Finding the Fourth Proportional to 8,338.30, 12,507.99 and 2,791.42

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Solution

The fourth proportional to 8,338.30, 12,507.99 and 2,791.42 is: 4,187.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,338.30 : 12,507.99 = 2,791.42 : x
  2. Step 2: Convert to fraction form
    8,338.30/12,507.99 = 2,791.42/x
  3. Step 3: Cross multiply
    8,338.30x = 12,507.99 × 2,791.42
  4. Step 4: Simplify right side
    8,338.30x = 34,915,053.45
  5. Step 5: Solve for x
    x = 34,915,053.45/8,338.30
  6. Step 6: Final answer
    x = 4,187.31

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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.