Home / 13,993.62-20,989.70-5,227.84

Finding the Fourth Proportional to 13,993.62, 20,989.70 and 5,227.84

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Solution

The fourth proportional to 13,993.62, 20,989.70 and 5,227.84 is: 7,841.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,993.62 : 20,989.70 = 5,227.84 : x
  2. Step 2: Convert to fraction form
    13,993.62/20,989.70 = 5,227.84/x
  3. Step 3: Cross multiply
    13,993.62x = 20,989.70 × 5,227.84
  4. Step 4: Simplify right side
    13,993.62x = 109,730,793.25
  5. Step 5: Solve for x
    x = 109,730,793.25/13,993.62
  6. Step 6: Final answer
    x = 7,841.49

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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.