Home / 10,287.62-14,195.85-5,811.86

Finding the Fourth Proportional to 10,287.62, 14,195.85 and 5,811.86

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Solution

The fourth proportional to 10,287.62, 14,195.85 and 5,811.86 is: 8,019.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,287.62 : 14,195.85 = 5,811.86 : x
  2. Step 2: Convert to fraction form
    10,287.62/14,195.85 = 5,811.86/x
  3. Step 3: Cross multiply
    10,287.62x = 14,195.85 × 5,811.86
  4. Step 4: Simplify right side
    10,287.62x = 82,504,292.78
  5. Step 5: Solve for x
    x = 82,504,292.78/10,287.62
  6. Step 6: Final answer
    x = 8,019.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.