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Finding the Fourth Proportional to 7,640.46, 11,508.73 and 6,951.56

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Solution

The fourth proportional to 7,640.46, 11,508.73 and 6,951.56 is: 10,471.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,640.46 : 11,508.73 = 6,951.56 : x
  2. Step 2: Convert to fraction form
    7,640.46/11,508.73 = 6,951.56/x
  3. Step 3: Cross multiply
    7,640.46x = 11,508.73 × 6,951.56
  4. Step 4: Simplify right side
    7,640.46x = 80,003,627.12
  5. Step 5: Solve for x
    x = 80,003,627.12/7,640.46
  6. Step 6: Final answer
    x = 10,471.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.