Home / 12,226.79-18,350.66-12,134.75

Finding the Fourth Proportional to 12,226.79, 18,350.66 and 12,134.75

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Solution

The fourth proportional to 12,226.79, 18,350.66 and 12,134.75 is: 18,212.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,226.79 : 18,350.66 = 12,134.75 : x
  2. Step 2: Convert to fraction form
    12,226.79/18,350.66 = 12,134.75/x
  3. Step 3: Cross multiply
    12,226.79x = 18,350.66 × 12,134.75
  4. Step 4: Simplify right side
    12,226.79x = 222,680,747.65
  5. Step 5: Solve for x
    x = 222,680,747.65/12,226.79
  6. Step 6: Final answer
    x = 18,212.52

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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.