Home / 11,141.12-16,709.52-4,120.04

Finding the Fourth Proportional to 11,141.12, 16,709.52 and 4,120.04

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Solution

The fourth proportional to 11,141.12, 16,709.52 and 4,120.04 is: 6,179.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,141.12 : 16,709.52 = 4,120.04 : x
  2. Step 2: Convert to fraction form
    11,141.12/16,709.52 = 4,120.04/x
  3. Step 3: Cross multiply
    11,141.12x = 16,709.52 × 4,120.04
  4. Step 4: Simplify right side
    11,141.12x = 68,843,890.78
  5. Step 5: Solve for x
    x = 68,843,890.78/11,141.12
  6. Step 6: Final answer
    x = 6,179.26

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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.