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Finding the Fourth Proportional to 8,253.26, 12,379.88 and 3,867.51

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Solution

The fourth proportional to 8,253.26, 12,379.88 and 3,867.51 is: 5,801.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,253.26 : 12,379.88 = 3,867.51 : x
  2. Step 2: Convert to fraction form
    8,253.26/12,379.88 = 3,867.51/x
  3. Step 3: Cross multiply
    8,253.26x = 12,379.88 × 3,867.51
  4. Step 4: Simplify right side
    8,253.26x = 47,879,309.70
  5. Step 5: Solve for x
    x = 47,879,309.70/8,253.26
  6. Step 6: Final answer
    x = 5,801.26

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1.5x scale

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.