Home / 11,949.29-17,921.70-3,184.95

Finding the Fourth Proportional to 11,949.29, 17,921.70 and 3,184.95

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Solution

The fourth proportional to 11,949.29, 17,921.70 and 3,184.95 is: 4,776.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,949.29 : 17,921.70 = 3,184.95 : x
  2. Step 2: Convert to fraction form
    11,949.29/17,921.70 = 3,184.95/x
  3. Step 3: Cross multiply
    11,949.29x = 17,921.70 × 3,184.95
  4. Step 4: Simplify right side
    11,949.29x = 57,079,718.42
  5. Step 5: Solve for x
    x = 57,079,718.42/11,949.29
  6. Step 6: Final answer
    x = 4,776.83

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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.