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Finding the Fourth Proportional to 8,443.44, 12,656.25 and 4,286.52

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Solution

The fourth proportional to 8,443.44, 12,656.25 and 4,286.52 is: 6,425.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,443.44 : 12,656.25 = 4,286.52 : x
  2. Step 2: Convert to fraction form
    8,443.44/12,656.25 = 4,286.52/x
  3. Step 3: Cross multiply
    8,443.44x = 12,656.25 × 4,286.52
  4. Step 4: Simplify right side
    8,443.44x = 54,251,268.75
  5. Step 5: Solve for x
    x = 54,251,268.75/8,443.44
  6. Step 6: Final answer
    x = 6,425.26

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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.