Home / 6,896.28-9,517.86-3,912.87

Finding the Fourth Proportional to 6,896.28, 9,517.86 and 3,912.87

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Solution

The fourth proportional to 6,896.28, 9,517.86 and 3,912.87 is: 5,400.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,896.28 : 9,517.86 = 3,912.87 : x
  2. Step 2: Convert to fraction form
    6,896.28/9,517.86 = 3,912.87/x
  3. Step 3: Cross multiply
    6,896.28x = 9,517.86 × 3,912.87
  4. Step 4: Simplify right side
    6,896.28x = 37,242,148.86
  5. Step 5: Solve for x
    x = 37,242,148.86/6,896.28
  6. Step 6: Final answer
    x = 5,400.32

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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.