Home / 7,414.32-11,118.24-3,519.84

Finding the Fourth Proportional to 7,414.32, 11,118.24 and 3,519.84

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Solution

The fourth proportional to 7,414.32, 11,118.24 and 3,519.84 is: 5,278.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,414.32 : 11,118.24 = 3,519.84 : x
  2. Step 2: Convert to fraction form
    7,414.32/11,118.24 = 3,519.84/x
  3. Step 3: Cross multiply
    7,414.32x = 11,118.24 × 3,519.84
  4. Step 4: Simplify right side
    7,414.32x = 39,134,425.88
  5. Step 5: Solve for x
    x = 39,134,425.88/7,414.32
  6. Step 6: Final answer
    x = 5,278.22

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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.