Home / 15,961.20-22,025.60-8,789.73

Finding the Fourth Proportional to 15,961.20, 22,025.60 and 8,789.73

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Solution

The fourth proportional to 15,961.20, 22,025.60 and 8,789.73 is: 12,129.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,961.20 : 22,025.60 = 8,789.73 : x
  2. Step 2: Convert to fraction form
    15,961.20/22,025.60 = 8,789.73/x
  3. Step 3: Cross multiply
    15,961.20x = 22,025.60 × 8,789.73
  4. Step 4: Simplify right side
    15,961.20x = 193,599,033.14
  5. Step 5: Solve for x
    x = 193,599,033.14/15,961.20
  6. Step 6: Final answer
    x = 12,129.35

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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.