Home / 18,825.56-25,990.52-11,761.54

Finding the Fourth Proportional to 18,825.56, 25,990.52 and 11,761.54

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Solution

The fourth proportional to 18,825.56, 25,990.52 and 11,761.54 is: 16,237.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,825.56 : 25,990.52 = 11,761.54 : x
  2. Step 2: Convert to fraction form
    18,825.56/25,990.52 = 11,761.54/x
  3. Step 3: Cross multiply
    18,825.56x = 25,990.52 × 11,761.54
  4. Step 4: Simplify right side
    18,825.56x = 305,688,540.60
  5. Step 5: Solve for x
    x = 305,688,540.60/18,825.56
  6. Step 6: Final answer
    x = 16,237.95

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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.