Home / 6,912.82-10,369.21-5,519.63

Finding the Fourth Proportional to 6,912.82, 10,369.21 and 5,519.63

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Solution

The fourth proportional to 6,912.82, 10,369.21 and 5,519.63 is: 8,279.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,912.82 : 10,369.21 = 5,519.63 : x
  2. Step 2: Convert to fraction form
    6,912.82/10,369.21 = 5,519.63/x
  3. Step 3: Cross multiply
    6,912.82x = 10,369.21 × 5,519.63
  4. Step 4: Simplify right side
    6,912.82x = 57,234,150.75
  5. Step 5: Solve for x
    x = 57,234,150.75/6,912.82
  6. Step 6: Final answer
    x = 8,279.43

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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.