Home / 7,786.20-11,675.19-3,398.52

Finding the Fourth Proportional to 7,786.20, 11,675.19 and 3,398.52

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Solution

The fourth proportional to 7,786.20, 11,675.19 and 3,398.52 is: 5,095.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,786.20 : 11,675.19 = 3,398.52 : x
  2. Step 2: Convert to fraction form
    7,786.20/11,675.19 = 3,398.52/x
  3. Step 3: Cross multiply
    7,786.20x = 11,675.19 × 3,398.52
  4. Step 4: Simplify right side
    7,786.20x = 39,678,366.72
  5. Step 5: Solve for x
    x = 39,678,366.72/7,786.20
  6. Step 6: Final answer
    x = 5,095.99

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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.