Home / 11,891.08-17,836.86-3,126.04

Finding the Fourth Proportional to 11,891.08, 17,836.86 and 3,126.04

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Solution

The fourth proportional to 11,891.08, 17,836.86 and 3,126.04 is: 4,689.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,891.08 : 17,836.86 = 3,126.04 : x
  2. Step 2: Convert to fraction form
    11,891.08/17,836.86 = 3,126.04/x
  3. Step 3: Cross multiply
    11,891.08x = 17,836.86 × 3,126.04
  4. Step 4: Simplify right side
    11,891.08x = 55,758,737.83
  5. Step 5: Solve for x
    x = 55,758,737.83/11,891.08
  6. Step 6: Final answer
    x = 4,689.12

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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.