Home / 11,818.58-17,727.80-3,498.65

Finding the Fourth Proportional to 11,818.58, 17,727.80 and 3,498.65

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Solution

The fourth proportional to 11,818.58, 17,727.80 and 3,498.65 is: 5,247.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,818.58 : 17,727.80 = 3,498.65 : x
  2. Step 2: Convert to fraction form
    11,818.58/17,727.80 = 3,498.65/x
  3. Step 3: Cross multiply
    11,818.58x = 17,727.80 × 3,498.65
  4. Step 4: Simplify right side
    11,818.58x = 62,023,278.83
  5. Step 5: Solve for x
    x = 62,023,278.83/11,818.58
  6. Step 6: Final answer
    x = 5,247.95

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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.