Home / 11,382.07-17,078.39-4,809.79

Finding the Fourth Proportional to 11,382.07, 17,078.39 and 4,809.79

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Solution

The fourth proportional to 11,382.07, 17,078.39 and 4,809.79 is: 7,216.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,382.07 : 17,078.39 = 4,809.79 : x
  2. Step 2: Convert to fraction form
    11,382.07/17,078.39 = 4,809.79/x
  3. Step 3: Cross multiply
    11,382.07x = 17,078.39 × 4,809.79
  4. Step 4: Simplify right side
    11,382.07x = 82,143,469.44
  5. Step 5: Solve for x
    x = 82,143,469.44/11,382.07
  6. Step 6: Final answer
    x = 7,216.92

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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.