Home / 18,212.10-25,137.94-11,838.82

Finding the Fourth Proportional to 18,212.10, 25,137.94 and 11,838.82

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Solution

The fourth proportional to 18,212.10, 25,137.94 and 11,838.82 is: 16,340.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,212.10 : 25,137.94 = 11,838.82 : x
  2. Step 2: Convert to fraction form
    18,212.10/25,137.94 = 11,838.82/x
  3. Step 3: Cross multiply
    18,212.10x = 25,137.94 × 11,838.82
  4. Step 4: Simplify right side
    18,212.10x = 297,603,546.83
  5. Step 5: Solve for x
    x = 297,603,546.83/18,212.10
  6. Step 6: Final answer
    x = 16,340.98

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1.5x scale

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.