Home / 18,275.50-25,224.92-11,917.95

Finding the Fourth Proportional to 18,275.50, 25,224.92 and 11,917.95

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Solution

The fourth proportional to 18,275.50, 25,224.92 and 11,917.95 is: 16,449.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,275.50 : 25,224.92 = 11,917.95 : x
  2. Step 2: Convert to fraction form
    18,275.50/25,224.92 = 11,917.95/x
  3. Step 3: Cross multiply
    18,275.50x = 25,224.92 × 11,917.95
  4. Step 4: Simplify right side
    18,275.50x = 300,629,335.31
  5. Step 5: Solve for x
    x = 300,629,335.31/18,275.50
  6. Step 6: Final answer
    x = 16,449.86

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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.