Home / 18,519.36-27,772.56-5,367.84

Finding the Fourth Proportional to 18,519.36, 27,772.56 and 5,367.84

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Solution

The fourth proportional to 18,519.36, 27,772.56 and 5,367.84 is: 8,049.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,519.36 : 27,772.56 = 5,367.84 : x
  2. Step 2: Convert to fraction form
    18,519.36/27,772.56 = 5,367.84/x
  3. Step 3: Cross multiply
    18,519.36x = 27,772.56 × 5,367.84
  4. Step 4: Simplify right side
    18,519.36x = 149,078,658.47
  5. Step 5: Solve for x
    x = 149,078,658.47/18,519.36
  6. Step 6: Final answer
    x = 8,049.88

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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.