Home / 7,979.85-11,974.23-4,651.97

Finding the Fourth Proportional to 7,979.85, 11,974.23 and 4,651.97

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Solution

The fourth proportional to 7,979.85, 11,974.23 and 4,651.97 is: 6,980.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,979.85 : 11,974.23 = 4,651.97 : x
  2. Step 2: Convert to fraction form
    7,979.85/11,974.23 = 4,651.97/x
  3. Step 3: Cross multiply
    7,979.85x = 11,974.23 × 4,651.97
  4. Step 4: Simplify right side
    7,979.85x = 55,703,698.86
  5. Step 5: Solve for x
    x = 55,703,698.86/7,979.85
  6. Step 6: Final answer
    x = 6,980.54

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1.5x scale

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.