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Finding the Fourth Proportional to 8,210, 12,314.88 and 3,825

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Solution

The fourth proportional to 8,210, 12,314.88 and 3,825 is: 5,737.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,210 : 12,314.88 = 3,825 : x
  2. Step 2: Convert to fraction form
    8,210/12,314.88 = 3,825/x
  3. Step 3: Cross multiply
    8,210x = 12,314.88 × 3,825
  4. Step 4: Simplify right side
    8,210x = 47,104,416
  5. Step 5: Solve for x
    x = 47,104,416/8,210
  6. Step 6: Final answer
    x = 5,737.44

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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.