Home / 11,936.87-17,905.85-3,618.08

Finding the Fourth Proportional to 11,936.87, 17,905.85 and 3,618.08

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Solution

The fourth proportional to 11,936.87, 17,905.85 and 3,618.08 is: 5,427.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,936.87 : 17,905.85 = 3,618.08 : x
  2. Step 2: Convert to fraction form
    11,936.87/17,905.85 = 3,618.08/x
  3. Step 3: Cross multiply
    11,936.87x = 17,905.85 × 3,618.08
  4. Step 4: Simplify right side
    11,936.87x = 64,784,797.77
  5. Step 5: Solve for x
    x = 64,784,797.77/11,936.87
  6. Step 6: Final answer
    x = 5,427.29

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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.