Home / 18,272.05-27,404.97-5,121.39

Finding the Fourth Proportional to 18,272.05, 27,404.97 and 5,121.39

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Solution

The fourth proportional to 18,272.05, 27,404.97 and 5,121.39 is: 7,681.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,272.05 : 27,404.97 = 5,121.39 : x
  2. Step 2: Convert to fraction form
    18,272.05/27,404.97 = 5,121.39/x
  3. Step 3: Cross multiply
    18,272.05x = 27,404.97 × 5,121.39
  4. Step 4: Simplify right side
    18,272.05x = 140,351,622.87
  5. Step 5: Solve for x
    x = 140,351,622.87/18,272.05
  6. Step 6: Final answer
    x = 7,681.22

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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.