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Finding the Fourth Proportional to 8,532.80, 12,801.60 and 3,604.80

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Solution

The fourth proportional to 8,532.80, 12,801.60 and 3,604.80 is: 5,408.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,532.80 : 12,801.60 = 3,604.80 : x
  2. Step 2: Convert to fraction form
    8,532.80/12,801.60 = 3,604.80/x
  3. Step 3: Cross multiply
    8,532.80x = 12,801.60 × 3,604.80
  4. Step 4: Simplify right side
    8,532.80x = 46,147,207.68
  5. Step 5: Solve for x
    x = 46,147,207.68/8,532.80
  6. Step 6: Final answer
    x = 5,408.21

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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.