Home / 18,083.21-27,120.74-4,936.64

Finding the Fourth Proportional to 18,083.21, 27,120.74 and 4,936.64

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Solution

The fourth proportional to 18,083.21, 27,120.74 and 4,936.64 is: 7,403.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,083.21 : 27,120.74 = 4,936.64 : x
  2. Step 2: Convert to fraction form
    18,083.21/27,120.74 = 4,936.64/x
  3. Step 3: Cross multiply
    18,083.21x = 27,120.74 × 4,936.64
  4. Step 4: Simplify right side
    18,083.21x = 133,885,169.63
  5. Step 5: Solve for x
    x = 133,885,169.63/18,083.21
  6. Step 6: Final answer
    x = 7,403.84

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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.