Home / 12,249.20-16,880.19-8,263.38

Finding the Fourth Proportional to 12,249.20, 16,880.19 and 8,263.38

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Solution

The fourth proportional to 12,249.20, 16,880.19 and 8,263.38 is: 11,387.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,249.20 : 16,880.19 = 8,263.38 : x
  2. Step 2: Convert to fraction form
    12,249.20/16,880.19 = 8,263.38/x
  3. Step 3: Cross multiply
    12,249.20x = 16,880.19 × 8,263.38
  4. Step 4: Simplify right side
    12,249.20x = 139,487,424.44
  5. Step 5: Solve for x
    x = 139,487,424.44/12,249.20
  6. Step 6: Final answer
    x = 11,387.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.