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Finding the Fourth Proportional to 6,976.22, 10,470.09 and 6,921.54

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Solution

The fourth proportional to 6,976.22, 10,470.09 and 6,921.54 is: 10,388.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,976.22 : 10,470.09 = 6,921.54 : x
  2. Step 2: Convert to fraction form
    6,976.22/10,470.09 = 6,921.54/x
  3. Step 3: Cross multiply
    6,976.22x = 10,470.09 × 6,921.54
  4. Step 4: Simplify right side
    6,976.22x = 72,469,146.74
  5. Step 5: Solve for x
    x = 72,469,146.74/6,976.22
  6. Step 6: Final answer
    x = 10,388.03

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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.