Home / 18,961.17-26,171.62-11,005.96

Finding the Fourth Proportional to 18,961.17, 26,171.62 and 11,005.96

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Solution

The fourth proportional to 18,961.17, 26,171.62 and 11,005.96 is: 15,191.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,961.17 : 26,171.62 = 11,005.96 : x
  2. Step 2: Convert to fraction form
    18,961.17/26,171.62 = 11,005.96/x
  3. Step 3: Cross multiply
    18,961.17x = 26,171.62 × 11,005.96
  4. Step 4: Simplify right side
    18,961.17x = 288,043,616.97
  5. Step 5: Solve for x
    x = 288,043,616.97/18,961.17
  6. Step 6: Final answer
    x = 15,191.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.