Home / 11,983.87-17,977.12-3,219.46

Finding the Fourth Proportional to 11,983.87, 17,977.12 and 3,219.46

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Solution

The fourth proportional to 11,983.87, 17,977.12 and 3,219.46 is: 4,829.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,983.87 : 17,977.12 = 3,219.46 : x
  2. Step 2: Convert to fraction form
    11,983.87/17,977.12 = 3,219.46/x
  3. Step 3: Cross multiply
    11,983.87x = 17,977.12 × 3,219.46
  4. Step 4: Simplify right side
    11,983.87x = 57,876,684.99
  5. Step 5: Solve for x
    x = 57,876,684.99/11,983.87
  6. Step 6: Final answer
    x = 4,829.55

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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.