Home / 11,806.30-17,708.88-2,921.59

Finding the Fourth Proportional to 11,806.30, 17,708.88 and 2,921.59

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Solution

The fourth proportional to 11,806.30, 17,708.88 and 2,921.59 is: 4,382.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,806.30 : 17,708.88 = 2,921.59 : x
  2. Step 2: Convert to fraction form
    11,806.30/17,708.88 = 2,921.59/x
  3. Step 3: Cross multiply
    11,806.30x = 17,708.88 × 2,921.59
  4. Step 4: Simplify right side
    11,806.30x = 51,738,072.11
  5. Step 5: Solve for x
    x = 51,738,072.11/11,806.30
  6. Step 6: Final answer
    x = 4,382.24

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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.