Home / 7,912.46-11,869.37-2,069.06

Finding the Fourth Proportional to 7,912.46, 11,869.37 and 2,069.06

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Solution

The fourth proportional to 7,912.46, 11,869.37 and 2,069.06 is: 3,103.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,912.46 : 11,869.37 = 2,069.06 : x
  2. Step 2: Convert to fraction form
    7,912.46/11,869.37 = 2,069.06/x
  3. Step 3: Cross multiply
    7,912.46x = 11,869.37 × 2,069.06
  4. Step 4: Simplify right side
    7,912.46x = 24,558,473.54
  5. Step 5: Solve for x
    x = 24,558,473.54/7,912.46
  6. Step 6: Final answer
    x = 3,103.77

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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.