Home / 11,964.95-16,512.17-6,660.11

Finding the Fourth Proportional to 11,964.95, 16,512.17 and 6,660.11

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Solution

The fourth proportional to 11,964.95, 16,512.17 and 6,660.11 is: 9,191.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,964.95 : 16,512.17 = 6,660.11 : x
  2. Step 2: Convert to fraction form
    11,964.95/16,512.17 = 6,660.11/x
  3. Step 3: Cross multiply
    11,964.95x = 16,512.17 × 6,660.11
  4. Step 4: Simplify right side
    11,964.95x = 109,972,868.54
  5. Step 5: Solve for x
    x = 109,972,868.54/11,964.95
  6. Step 6: Final answer
    x = 9,191.25

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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.