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Finding the Fourth Proportional to 6,759.75, 9,334.88 and 6,391.61

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Solution

The fourth proportional to 6,759.75, 9,334.88 and 6,391.61 is: 8,826.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,759.75 : 9,334.88 = 6,391.61 : x
  2. Step 2: Convert to fraction form
    6,759.75/9,334.88 = 6,391.61/x
  3. Step 3: Cross multiply
    6,759.75x = 9,334.88 × 6,391.61
  4. Step 4: Simplify right side
    6,759.75x = 59,664,912.36
  5. Step 5: Solve for x
    x = 59,664,912.36/6,759.75
  6. Step 6: Final answer
    x = 8,826.50

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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.