Home / 12,155.97-18,236.40-3,837.27

Finding the Fourth Proportional to 12,155.97, 18,236.40 and 3,837.27

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Solution

The fourth proportional to 12,155.97, 18,236.40 and 3,837.27 is: 5,756.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,155.97 : 18,236.40 = 3,837.27 : x
  2. Step 2: Convert to fraction form
    12,155.97/18,236.40 = 3,837.27/x
  3. Step 3: Cross multiply
    12,155.97x = 18,236.40 × 3,837.27
  4. Step 4: Simplify right side
    12,155.97x = 69,977,990.63
  5. Step 5: Solve for x
    x = 69,977,990.63/12,155.97
  6. Step 6: Final answer
    x = 5,756.68

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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.