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Finding the Fourth Proportional to 7,940.28, 10,944.96 and 6,258.96

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Solution

The fourth proportional to 7,940.28, 10,944.96 and 6,258.96 is: 8,627.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,940.28 : 10,944.96 = 6,258.96 : x
  2. Step 2: Convert to fraction form
    7,940.28/10,944.96 = 6,258.96/x
  3. Step 3: Cross multiply
    7,940.28x = 10,944.96 × 6,258.96
  4. Step 4: Simplify right side
    7,940.28x = 68,504,066.84
  5. Step 5: Solve for x
    x = 68,504,066.84/7,940.28
  6. Step 6: Final answer
    x = 8,627.41

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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.