Home / 8,137.43-12,206.15-2,942.09

Finding the Fourth Proportional to 8,137.43, 12,206.15 and 2,942.09

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Solution

The fourth proportional to 8,137.43, 12,206.15 and 2,942.09 is: 4,413.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,137.43 : 12,206.15 = 2,942.09 : x
  2. Step 2: Convert to fraction form
    8,137.43/12,206.15 = 2,942.09/x
  3. Step 3: Cross multiply
    8,137.43x = 12,206.15 × 2,942.09
  4. Step 4: Simplify right side
    8,137.43x = 35,911,591.85
  5. Step 5: Solve for x
    x = 35,911,591.85/8,137.43
  6. Step 6: Final answer
    x = 4,413.14

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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.