Home / 6,865.20-10,287.72-4,092.48

Finding the Fourth Proportional to 6,865.20, 10,287.72 and 4,092.48

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Solution

The fourth proportional to 6,865.20, 10,287.72 and 4,092.48 is: 6,132.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,865.20 : 10,287.72 = 4,092.48 : x
  2. Step 2: Convert to fraction form
    6,865.20/10,287.72 = 4,092.48/x
  3. Step 3: Cross multiply
    6,865.20x = 10,287.72 × 4,092.48
  4. Step 4: Simplify right side
    6,865.20x = 42,102,288.35
  5. Step 5: Solve for x
    x = 42,102,288.35/6,865.20
  6. Step 6: Final answer
    x = 6,132.71

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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.