Home / 8,229.20-11,353.47-4,643.73

Finding the Fourth Proportional to 8,229.20, 11,353.47 and 4,643.73

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Solution

The fourth proportional to 8,229.20, 11,353.47 and 4,643.73 is: 6,406.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,229.20 : 11,353.47 = 4,643.73 : x
  2. Step 2: Convert to fraction form
    8,229.20/11,353.47 = 4,643.73/x
  3. Step 3: Cross multiply
    8,229.20x = 11,353.47 × 4,643.73
  4. Step 4: Simplify right side
    8,229.20x = 52,722,431.83
  5. Step 5: Solve for x
    x = 52,722,431.83/8,229.20
  6. Step 6: Final answer
    x = 6,406.75

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Half scale
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Double scale
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1.5x scale

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.