Home / 13,794.44-20,683.82-12,618.92

Finding the Fourth Proportional to 13,794.44, 20,683.82 and 12,618.92

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Solution

The fourth proportional to 13,794.44, 20,683.82 and 12,618.92 is: 18,921.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,794.44 : 20,683.82 = 12,618.92 : x
  2. Step 2: Convert to fraction form
    13,794.44/20,683.82 = 12,618.92/x
  3. Step 3: Cross multiply
    13,794.44x = 20,683.82 × 12,618.92
  4. Step 4: Simplify right side
    13,794.44x = 261,007,469.87
  5. Step 5: Solve for x
    x = 261,007,469.87/13,794.44
  6. Step 6: Final answer
    x = 18,921.21

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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.