Home / 13,611.39-20,414.31-4,249.89

Finding the Fourth Proportional to 13,611.39, 20,414.31 and 4,249.89

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Solution

The fourth proportional to 13,611.39, 20,414.31 and 4,249.89 is: 6,373.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,611.39 : 20,414.31 = 4,249.89 : x
  2. Step 2: Convert to fraction form
    13,611.39/20,414.31 = 4,249.89/x
  3. Step 3: Cross multiply
    13,611.39x = 20,414.31 × 4,249.89
  4. Step 4: Simplify right side
    13,611.39x = 86,758,571.93
  5. Step 5: Solve for x
    x = 86,758,571.93/13,611.39
  6. Step 6: Final answer
    x = 6,373.97

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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.