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Finding the Fourth Proportional to 6,863.88, 10,276.20 and 6,427.94

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Solution

The fourth proportional to 6,863.88, 10,276.20 and 6,427.94 is: 9,623.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,863.88 : 10,276.20 = 6,427.94 : x
  2. Step 2: Convert to fraction form
    6,863.88/10,276.20 = 6,427.94/x
  3. Step 3: Cross multiply
    6,863.88x = 10,276.20 × 6,427.94
  4. Step 4: Simplify right side
    6,863.88x = 66,054,797.03
  5. Step 5: Solve for x
    x = 66,054,797.03/6,863.88
  6. Step 6: Final answer
    x = 9,623.54

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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.