Home / 15,733.82-21,713.25-8,660.54

Finding the Fourth Proportional to 15,733.82, 21,713.25 and 8,660.54

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Solution

The fourth proportional to 15,733.82, 21,713.25 and 8,660.54 is: 11,951.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,733.82 : 21,713.25 = 8,660.54 : x
  2. Step 2: Convert to fraction form
    15,733.82/21,713.25 = 8,660.54/x
  3. Step 3: Cross multiply
    15,733.82x = 21,713.25 × 8,660.54
  4. Step 4: Simplify right side
    15,733.82x = 188,048,470.16
  5. Step 5: Solve for x
    x = 188,048,470.16/15,733.82
  6. Step 6: Final answer
    x = 11,951.86

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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.