Home / 12,194.80-18,294.78-3,873.79

Finding the Fourth Proportional to 12,194.80, 18,294.78 and 3,873.79

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Solution

The fourth proportional to 12,194.80, 18,294.78 and 3,873.79 is: 5,811.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,194.80 : 18,294.78 = 3,873.79 : x
  2. Step 2: Convert to fraction form
    12,194.80/18,294.78 = 3,873.79/x
  3. Step 3: Cross multiply
    12,194.80x = 18,294.78 × 3,873.79
  4. Step 4: Simplify right side
    12,194.80x = 70,870,135.82
  5. Step 5: Solve for x
    x = 70,870,135.82/12,194.80
  6. Step 6: Final answer
    x = 5,811.50

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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.