Home / 8,479.26-12,716.46-5,193.90

Finding the Fourth Proportional to 8,479.26, 12,716.46 and 5,193.90

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Solution

The fourth proportional to 8,479.26, 12,716.46 and 5,193.90 is: 7,789.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,479.26 : 12,716.46 = 5,193.90 : x
  2. Step 2: Convert to fraction form
    8,479.26/12,716.46 = 5,193.90/x
  3. Step 3: Cross multiply
    8,479.26x = 12,716.46 × 5,193.90
  4. Step 4: Simplify right side
    8,479.26x = 66,048,021.59
  5. Step 5: Solve for x
    x = 66,048,021.59/8,479.26
  6. Step 6: Final answer
    x = 7,789.36

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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.