Home / 11,319.11-16,972.97-3,921.59

Finding the Fourth Proportional to 11,319.11, 16,972.97 and 3,921.59

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Solution

The fourth proportional to 11,319.11, 16,972.97 and 3,921.59 is: 5,880.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,319.11 : 16,972.97 = 3,921.59 : x
  2. Step 2: Convert to fraction form
    11,319.11/16,972.97 = 3,921.59/x
  3. Step 3: Cross multiply
    11,319.11x = 16,972.97 × 3,921.59
  4. Step 4: Simplify right side
    11,319.11x = 66,560,924.95
  5. Step 5: Solve for x
    x = 66,560,924.95/11,319.11
  6. Step 6: Final answer
    x = 5,880.40

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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.