Home / 8,512.52-12,771.20-3,579.62

Finding the Fourth Proportional to 8,512.52, 12,771.20 and 3,579.62

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Solution

The fourth proportional to 8,512.52, 12,771.20 and 3,579.62 is: 5,370.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,512.52 : 12,771.20 = 3,579.62 : x
  2. Step 2: Convert to fraction form
    8,512.52/12,771.20 = 3,579.62/x
  3. Step 3: Cross multiply
    8,512.52x = 12,771.20 × 3,579.62
  4. Step 4: Simplify right side
    8,512.52x = 45,715,988.04
  5. Step 5: Solve for x
    x = 45,715,988.04/8,512.52
  6. Step 6: Final answer
    x = 5,370.44

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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.