Home / 18,220.41-25,149.38-11,847.11

Finding the Fourth Proportional to 18,220.41, 25,149.38 and 11,847.11

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Solution

The fourth proportional to 18,220.41, 25,149.38 and 11,847.11 is: 16,352.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,220.41 : 25,149.38 = 11,847.11 : x
  2. Step 2: Convert to fraction form
    18,220.41/25,149.38 = 11,847.11/x
  3. Step 3: Cross multiply
    18,220.41x = 25,149.38 × 11,847.11
  4. Step 4: Simplify right side
    18,220.41x = 297,947,286.31
  5. Step 5: Solve for x
    x = 297,947,286.31/18,220.41
  6. Step 6: Final answer
    x = 16,352.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.