Home / 11,972.72-17,959.52-6,122.48

Finding the Fourth Proportional to 11,972.72, 17,959.52 and 6,122.48

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Solution

The fourth proportional to 11,972.72, 17,959.52 and 6,122.48 is: 9,183.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,972.72 : 17,959.52 = 6,122.48 : x
  2. Step 2: Convert to fraction form
    11,972.72/17,959.52 = 6,122.48/x
  3. Step 3: Cross multiply
    11,972.72x = 17,959.52 × 6,122.48
  4. Step 4: Simplify right side
    11,972.72x = 109,956,802.01
  5. Step 5: Solve for x
    x = 109,956,802.01/11,972.72
  6. Step 6: Final answer
    x = 9,183.95

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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.