Home / 7,976.72-11,007.86-4,391.85

Finding the Fourth Proportional to 7,976.72, 11,007.86 and 4,391.85

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Solution

The fourth proportional to 7,976.72, 11,007.86 and 4,391.85 is: 6,060.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,976.72 : 11,007.86 = 4,391.85 : x
  2. Step 2: Convert to fraction form
    7,976.72/11,007.86 = 4,391.85/x
  3. Step 3: Cross multiply
    7,976.72x = 11,007.86 × 4,391.85
  4. Step 4: Simplify right side
    7,976.72x = 48,344,847.98
  5. Step 5: Solve for x
    x = 48,344,847.98/7,976.72
  6. Step 6: Final answer
    x = 6,060.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.