Home / 11,680.62-17,521.08-3,889.44

Finding the Fourth Proportional to 11,680.62, 17,521.08 and 3,889.44

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Solution

The fourth proportional to 11,680.62, 17,521.08 and 3,889.44 is: 5,834.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,680.62 : 17,521.08 = 3,889.44 : x
  2. Step 2: Convert to fraction form
    11,680.62/17,521.08 = 3,889.44/x
  3. Step 3: Cross multiply
    11,680.62x = 17,521.08 × 3,889.44
  4. Step 4: Simplify right side
    11,680.62x = 68,147,189.40
  5. Step 5: Solve for x
    x = 68,147,189.40/11,680.62
  6. Step 6: Final answer
    x = 5,834.21

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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.