Home / 11,827.47-17,736.87-3,928.56

Finding the Fourth Proportional to 11,827.47, 17,736.87 and 3,928.56

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Solution

The fourth proportional to 11,827.47, 17,736.87 and 3,928.56 is: 5,891.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,827.47 : 17,736.87 = 3,928.56 : x
  2. Step 2: Convert to fraction form
    11,827.47/17,736.87 = 3,928.56/x
  3. Step 3: Cross multiply
    11,827.47x = 17,736.87 × 3,928.56
  4. Step 4: Simplify right side
    11,827.47x = 69,680,358.01
  5. Step 5: Solve for x
    x = 69,680,358.01/11,827.47
  6. Step 6: Final answer
    x = 5,891.40

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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.