Home / 10,198.75-15,287.60-4,279.07

Finding the Fourth Proportional to 10,198.75, 15,287.60 and 4,279.07

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Solution

The fourth proportional to 10,198.75, 15,287.60 and 4,279.07 is: 6,414.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,198.75 : 15,287.60 = 4,279.07 : x
  2. Step 2: Convert to fraction form
    10,198.75/15,287.60 = 4,279.07/x
  3. Step 3: Cross multiply
    10,198.75x = 15,287.60 × 4,279.07
  4. Step 4: Simplify right side
    10,198.75x = 65,416,743.40
  5. Step 5: Solve for x
    x = 65,416,743.40/10,198.75
  6. Step 6: Final answer
    x = 6,414.19

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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.