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Finding the Fourth Proportional to 8,750.80, 13,131 and 4,133.68

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Solution

The fourth proportional to 8,750.80, 13,131 and 4,133.68 is: 6,202.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,750.80 : 13,131 = 4,133.68 : x
  2. Step 2: Convert to fraction form
    8,750.80/13,131 = 4,133.68/x
  3. Step 3: Cross multiply
    8,750.80x = 13,131 × 4,133.68
  4. Step 4: Simplify right side
    8,750.80x = 54,279,352.08
  5. Step 5: Solve for x
    x = 54,279,352.08/8,750.80
  6. Step 6: Final answer
    x = 6,202.79

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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.