Home / 11,943.68-17,915.52-3,179.28

Finding the Fourth Proportional to 11,943.68, 17,915.52 and 3,179.28

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Solution

The fourth proportional to 11,943.68, 17,915.52 and 3,179.28 is: 4,768.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,943.68 : 17,915.52 = 3,179.28 : x
  2. Step 2: Convert to fraction form
    11,943.68/17,915.52 = 3,179.28/x
  3. Step 3: Cross multiply
    11,943.68x = 17,915.52 × 3,179.28
  4. Step 4: Simplify right side
    11,943.68x = 56,958,454.43
  5. Step 5: Solve for x
    x = 56,958,454.43/11,943.68
  6. Step 6: Final answer
    x = 4,768.92

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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.