Home / 7,976.92-11,003.88-5,320.90

Finding the Fourth Proportional to 7,976.92, 11,003.88 and 5,320.90

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Solution

The fourth proportional to 7,976.92, 11,003.88 and 5,320.90 is: 7,339.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,976.92 : 11,003.88 = 5,320.90 : x
  2. Step 2: Convert to fraction form
    7,976.92/11,003.88 = 5,320.90/x
  3. Step 3: Cross multiply
    7,976.92x = 11,003.88 × 5,320.90
  4. Step 4: Simplify right side
    7,976.92x = 58,550,545.09
  5. Step 5: Solve for x
    x = 58,550,545.09/7,976.92
  6. Step 6: Final answer
    x = 7,339.99

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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.