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Finding the Fourth Proportional to 8,531.46, 12,796.74 and 4,135.68

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Solution

The fourth proportional to 8,531.46, 12,796.74 and 4,135.68 is: 6,203.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,531.46 : 12,796.74 = 4,135.68 : x
  2. Step 2: Convert to fraction form
    8,531.46/12,796.74 = 4,135.68/x
  3. Step 3: Cross multiply
    8,531.46x = 12,796.74 × 4,135.68
  4. Step 4: Simplify right side
    8,531.46x = 52,923,221.68
  5. Step 5: Solve for x
    x = 52,923,221.68/8,531.46
  6. Step 6: Final answer
    x = 6,203.30

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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.