Home / 12,845.91-19,267.11-3,839.90

Finding the Fourth Proportional to 12,845.91, 19,267.11 and 3,839.90

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Solution

The fourth proportional to 12,845.91, 19,267.11 and 3,839.90 is: 5,759.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,845.91 : 19,267.11 = 3,839.90 : x
  2. Step 2: Convert to fraction form
    12,845.91/19,267.11 = 3,839.90/x
  3. Step 3: Cross multiply
    12,845.91x = 19,267.11 × 3,839.90
  4. Step 4: Simplify right side
    12,845.91x = 73,983,775.69
  5. Step 5: Solve for x
    x = 73,983,775.69/12,845.91
  6. Step 6: Final answer
    x = 5,759.33

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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.