Home / 12,114.62-18,175.38-5,091

Finding the Fourth Proportional to 12,114.62, 18,175.38 and 5,091

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Solution

The fourth proportional to 12,114.62, 18,175.38 and 5,091 is: 7,637.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,114.62 : 18,175.38 = 5,091 : x
  2. Step 2: Convert to fraction form
    12,114.62/18,175.38 = 5,091/x
  3. Step 3: Cross multiply
    12,114.62x = 18,175.38 × 5,091
  4. Step 4: Simplify right side
    12,114.62x = 92,530,859.58
  5. Step 5: Solve for x
    x = 92,530,859.58/12,114.62
  6. Step 6: Final answer
    x = 7,637.95

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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.