Home / 18,600.43-27,898.20-8,209.75

Finding the Fourth Proportional to 18,600.43, 27,898.20 and 8,209.75

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Solution

The fourth proportional to 18,600.43, 27,898.20 and 8,209.75 is: 12,313.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,600.43 : 27,898.20 = 8,209.75 : x
  2. Step 2: Convert to fraction form
    18,600.43/27,898.20 = 8,209.75/x
  3. Step 3: Cross multiply
    18,600.43x = 27,898.20 × 8,209.75
  4. Step 4: Simplify right side
    18,600.43x = 229,037,247.45
  5. Step 5: Solve for x
    x = 229,037,247.45/18,600.43
  6. Step 6: Final answer
    x = 12,313.55

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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.