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Finding the Fourth Proportional to 8,170.66, 12,248.70 and 4,268.08

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Solution

The fourth proportional to 8,170.66, 12,248.70 and 4,268.08 is: 6,398.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,170.66 : 12,248.70 = 4,268.08 : x
  2. Step 2: Convert to fraction form
    8,170.66/12,248.70 = 4,268.08/x
  3. Step 3: Cross multiply
    8,170.66x = 12,248.70 × 4,268.08
  4. Step 4: Simplify right side
    8,170.66x = 52,278,431.50
  5. Step 5: Solve for x
    x = 52,278,431.50/8,170.66
  6. Step 6: Final answer
    x = 6,398.31

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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.