Home / 11,811.24-17,694.12-6,620.76

Finding the Fourth Proportional to 11,811.24, 17,694.12 and 6,620.76

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Solution

The fourth proportional to 11,811.24, 17,694.12 and 6,620.76 is: 9,918.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,811.24 : 17,694.12 = 6,620.76 : x
  2. Step 2: Convert to fraction form
    11,811.24/17,694.12 = 6,620.76/x
  3. Step 3: Cross multiply
    11,811.24x = 17,694.12 × 6,620.76
  4. Step 4: Simplify right side
    11,811.24x = 117,148,521.93
  5. Step 5: Solve for x
    x = 117,148,521.93/11,811.24
  6. Step 6: Final answer
    x = 9,918.39

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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.