Home / 12,094.31-18,138.33-5,427

Finding the Fourth Proportional to 12,094.31, 18,138.33 and 5,427

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Solution

The fourth proportional to 12,094.31, 18,138.33 and 5,427 is: 8,139.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,094.31 : 18,138.33 = 5,427 : x
  2. Step 2: Convert to fraction form
    12,094.31/18,138.33 = 5,427/x
  3. Step 3: Cross multiply
    12,094.31x = 18,138.33 × 5,427
  4. Step 4: Simplify right side
    12,094.31x = 98,436,716.91
  5. Step 5: Solve for x
    x = 98,436,716.91/12,094.31
  6. Step 6: Final answer
    x = 8,139.09

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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.