Home / 19,251.06-28,879.62-8,157.78

Finding the Fourth Proportional to 19,251.06, 28,879.62 and 8,157.78

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Solution

The fourth proportional to 19,251.06, 28,879.62 and 8,157.78 is: 12,237.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,251.06 : 28,879.62 = 8,157.78 : x
  2. Step 2: Convert to fraction form
    19,251.06/28,879.62 = 8,157.78/x
  3. Step 3: Cross multiply
    19,251.06x = 28,879.62 × 8,157.78
  4. Step 4: Simplify right side
    19,251.06x = 235,593,586.44
  5. Step 5: Solve for x
    x = 235,593,586.44/19,251.06
  6. Step 6: Final answer
    x = 12,237.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.