Home / 10,067.87-15,033.99-8,222.64

Finding the Fourth Proportional to 10,067.87, 15,033.99 and 8,222.64

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Solution

The fourth proportional to 10,067.87, 15,033.99 and 8,222.64 is: 12,278.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,067.87 : 15,033.99 = 8,222.64 : x
  2. Step 2: Convert to fraction form
    10,067.87/15,033.99 = 8,222.64/x
  3. Step 3: Cross multiply
    10,067.87x = 15,033.99 × 8,222.64
  4. Step 4: Simplify right side
    10,067.87x = 123,619,087.53
  5. Step 5: Solve for x
    x = 123,619,087.53/10,067.87
  6. Step 6: Final answer
    x = 12,278.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.