Home / 13,267.11-19,896.44-4,380.79

Finding the Fourth Proportional to 13,267.11, 19,896.44 and 4,380.79

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Solution

The fourth proportional to 13,267.11, 19,896.44 and 4,380.79 is: 6,569.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,267.11 : 19,896.44 = 4,380.79 : x
  2. Step 2: Convert to fraction form
    13,267.11/19,896.44 = 4,380.79/x
  3. Step 3: Cross multiply
    13,267.11x = 19,896.44 × 4,380.79
  4. Step 4: Simplify right side
    13,267.11x = 87,162,025.91
  5. Step 5: Solve for x
    x = 87,162,025.91/13,267.11
  6. Step 6: Final answer
    x = 6,569.78

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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.