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Finding the Fourth Proportional to 6,286.60, 8,735.67 and 6,218.26

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Solution

The fourth proportional to 6,286.60, 8,735.67 and 6,218.26 is: 8,640.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,286.60 : 8,735.67 = 6,218.26 : x
  2. Step 2: Convert to fraction form
    6,286.60/8,735.67 = 6,218.26/x
  3. Step 3: Cross multiply
    6,286.60x = 8,735.67 × 6,218.26
  4. Step 4: Simplify right side
    6,286.60x = 54,320,645.50
  5. Step 5: Solve for x
    x = 54,320,645.50/6,286.60
  6. Step 6: Final answer
    x = 8,640.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.