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Finding the Fourth Proportional to 8,459.75, 12,694.21 and 3,529.82

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Solution

The fourth proportional to 8,459.75, 12,694.21 and 3,529.82 is: 5,296.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,459.75 : 12,694.21 = 3,529.82 : x
  2. Step 2: Convert to fraction form
    8,459.75/12,694.21 = 3,529.82/x
  3. Step 3: Cross multiply
    8,459.75x = 12,694.21 × 3,529.82
  4. Step 4: Simplify right side
    8,459.75x = 44,808,249.02
  5. Step 5: Solve for x
    x = 44,808,249.02/8,459.75
  6. Step 6: Final answer
    x = 5,296.64

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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.