Home / 11,900.31-17,867.96-11,690.34

Finding the Fourth Proportional to 11,900.31, 17,867.96 and 11,690.34

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Solution

The fourth proportional to 11,900.31, 17,867.96 and 11,690.34 is: 17,552.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,900.31 : 17,867.96 = 11,690.34 : x
  2. Step 2: Convert to fraction form
    11,900.31/17,867.96 = 11,690.34/x
  3. Step 3: Cross multiply
    11,900.31x = 17,867.96 × 11,690.34
  4. Step 4: Simplify right side
    11,900.31x = 208,882,469.05
  5. Step 5: Solve for x
    x = 208,882,469.05/11,900.31
  6. Step 6: Final answer
    x = 17,552.69

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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.