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Finding the Fourth Proportional to 8,326.44, 11,491.06 and 4,789.80

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Solution

The fourth proportional to 8,326.44, 11,491.06 and 4,789.80 is: 6,610.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,326.44 : 11,491.06 = 4,789.80 : x
  2. Step 2: Convert to fraction form
    8,326.44/11,491.06 = 4,789.80/x
  3. Step 3: Cross multiply
    8,326.44x = 11,491.06 × 4,789.80
  4. Step 4: Simplify right side
    8,326.44x = 55,039,879.19
  5. Step 5: Solve for x
    x = 55,039,879.19/8,326.44
  6. Step 6: Final answer
    x = 6,610.25

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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.