Home / 8,543.10-12,819.78-3,612.36

Finding the Fourth Proportional to 8,543.10, 12,819.78 and 3,612.36

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Solution

The fourth proportional to 8,543.10, 12,819.78 and 3,612.36 is: 5,420.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,543.10 : 12,819.78 = 3,612.36 : x
  2. Step 2: Convert to fraction form
    8,543.10/12,819.78 = 3,612.36/x
  3. Step 3: Cross multiply
    8,543.10x = 12,819.78 × 3,612.36
  4. Step 4: Simplify right side
    8,543.10x = 46,309,660.48
  5. Step 5: Solve for x
    x = 46,309,660.48/8,543.10
  6. Step 6: Final answer
    x = 5,420.71

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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.