Home / 11,836.78-17,738.25-8,692.12

Finding the Fourth Proportional to 11,836.78, 17,738.25 and 8,692.12

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Solution

The fourth proportional to 11,836.78, 17,738.25 and 8,692.12 is: 13,025.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,836.78 : 17,738.25 = 8,692.12 : x
  2. Step 2: Convert to fraction form
    11,836.78/17,738.25 = 8,692.12/x
  3. Step 3: Cross multiply
    11,836.78x = 17,738.25 × 8,692.12
  4. Step 4: Simplify right side
    11,836.78x = 154,182,953.24
  5. Step 5: Solve for x
    x = 154,182,953.24/11,836.78
  6. Step 6: Final answer
    x = 13,025.75

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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.