Home / 9,118.61-13,679.81-3,853.62

Finding the Fourth Proportional to 9,118.61, 13,679.81 and 3,853.62

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Solution

The fourth proportional to 9,118.61, 13,679.81 and 3,853.62 is: 5,781.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,118.61 : 13,679.81 = 3,853.62 : x
  2. Step 2: Convert to fraction form
    9,118.61/13,679.81 = 3,853.62/x
  3. Step 3: Cross multiply
    9,118.61x = 13,679.81 × 3,853.62
  4. Step 4: Simplify right side
    9,118.61x = 52,716,770.14
  5. Step 5: Solve for x
    x = 52,716,770.14/9,118.61
  6. Step 6: Final answer
    x = 5,781.23

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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.