Home / 11,873.56-17,811.36-3,108.47

Finding the Fourth Proportional to 11,873.56, 17,811.36 and 3,108.47

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Solution

The fourth proportional to 11,873.56, 17,811.36 and 3,108.47 is: 4,662.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,873.56 : 17,811.36 = 3,108.47 : x
  2. Step 2: Convert to fraction form
    11,873.56/17,811.36 = 3,108.47/x
  3. Step 3: Cross multiply
    11,873.56x = 17,811.36 × 3,108.47
  4. Step 4: Simplify right side
    11,873.56x = 55,366,122.75
  5. Step 5: Solve for x
    x = 55,366,122.75/11,873.56
  6. Step 6: Final answer
    x = 4,662.98

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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.