Home / 8,324.15-11,489.78-4,789.85

Finding the Fourth Proportional to 8,324.15, 11,489.78 and 4,789.85

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Solution

The fourth proportional to 8,324.15, 11,489.78 and 4,789.85 is: 6,611.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,324.15 : 11,489.78 = 4,789.85 : x
  2. Step 2: Convert to fraction form
    8,324.15/11,489.78 = 4,789.85/x
  3. Step 3: Cross multiply
    8,324.15x = 11,489.78 × 4,789.85
  4. Step 4: Simplify right side
    8,324.15x = 55,034,277.26
  5. Step 5: Solve for x
    x = 55,034,277.26/8,324.15
  6. Step 6: Final answer
    x = 6,611.40

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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.