Home / 8,326.12-11,489.70-4,789.84

Finding the Fourth Proportional to 8,326.12, 11,489.70 and 4,789.84

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Solution

The fourth proportional to 8,326.12, 11,489.70 and 4,789.84 is: 6,609.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,326.12 : 11,489.70 = 4,789.84 : x
  2. Step 2: Convert to fraction form
    8,326.12/11,489.70 = 4,789.84/x
  3. Step 3: Cross multiply
    8,326.12x = 11,489.70 × 4,789.84
  4. Step 4: Simplify right side
    8,326.12x = 55,033,824.65
  5. Step 5: Solve for x
    x = 55,033,824.65/8,326.12
  6. Step 6: Final answer
    x = 6,609.78

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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.