Home / 11,904.89-17,857.46-4,111.88

Finding the Fourth Proportional to 11,904.89, 17,857.46 and 4,111.88

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Solution

The fourth proportional to 11,904.89, 17,857.46 and 4,111.88 is: 6,167.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,904.89 : 17,857.46 = 4,111.88 : x
  2. Step 2: Convert to fraction form
    11,904.89/17,857.46 = 4,111.88/x
  3. Step 3: Cross multiply
    11,904.89x = 17,857.46 × 4,111.88
  4. Step 4: Simplify right side
    11,904.89x = 73,427,653.62
  5. Step 5: Solve for x
    x = 73,427,653.62/11,904.89
  6. Step 6: Final answer
    x = 6,167.86

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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.