Home / 6,912.42-9,539.19-3,768.72

Finding the Fourth Proportional to 6,912.42, 9,539.19 and 3,768.72

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Solution

The fourth proportional to 6,912.42, 9,539.19 and 3,768.72 is: 5,200.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,912.42 : 9,539.19 = 3,768.72 : x
  2. Step 2: Convert to fraction form
    6,912.42/9,539.19 = 3,768.72/x
  3. Step 3: Cross multiply
    6,912.42x = 9,539.19 × 3,768.72
  4. Step 4: Simplify right side
    6,912.42x = 35,950,536.14
  5. Step 5: Solve for x
    x = 35,950,536.14/6,912.42
  6. Step 6: Final answer
    x = 5,200.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.