Home / 11,979.05-17,960.85-5,738.91

Finding the Fourth Proportional to 11,979.05, 17,960.85 and 5,738.91

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Solution

The fourth proportional to 11,979.05, 17,960.85 and 5,738.91 is: 8,604.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,979.05 : 17,960.85 = 5,738.91 : x
  2. Step 2: Convert to fraction form
    11,979.05/17,960.85 = 5,738.91/x
  3. Step 3: Cross multiply
    11,979.05x = 17,960.85 × 5,738.91
  4. Step 4: Simplify right side
    11,979.05x = 103,075,701.67
  5. Step 5: Solve for x
    x = 103,075,701.67/11,979.05
  6. Step 6: Final answer
    x = 8,604.66

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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.