Home / 9,118.62-13,679.39-3,853.68

Finding the Fourth Proportional to 9,118.62, 13,679.39 and 3,853.68

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Solution

The fourth proportional to 9,118.62, 13,679.39 and 3,853.68 is: 5,781.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,118.62 : 13,679.39 = 3,853.68 : x
  2. Step 2: Convert to fraction form
    9,118.62/13,679.39 = 3,853.68/x
  3. Step 3: Cross multiply
    9,118.62x = 13,679.39 × 3,853.68
  4. Step 4: Simplify right side
    9,118.62x = 52,715,986.84
  5. Step 5: Solve for x
    x = 52,715,986.84/9,118.62
  6. Step 6: Final answer
    x = 5,781.14

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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.