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Finding the Fourth Proportional to 8,539.75, 12,811.79 and 2,383.75

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Solution

The fourth proportional to 8,539.75, 12,811.79 and 2,383.75 is: 3,576.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,539.75 : 12,811.79 = 2,383.75 : x
  2. Step 2: Convert to fraction form
    8,539.75/12,811.79 = 2,383.75/x
  3. Step 3: Cross multiply
    8,539.75x = 12,811.79 × 2,383.75
  4. Step 4: Simplify right side
    8,539.75x = 30,540,104.41
  5. Step 5: Solve for x
    x = 30,540,104.41/8,539.75
  6. Step 6: Final answer
    x = 3,576.23

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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.