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Finding the Fourth Proportional to 6,640.03, 9,949.11 and 4,168.72

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Solution

The fourth proportional to 6,640.03, 9,949.11 and 4,168.72 is: 6,246.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,640.03 : 9,949.11 = 4,168.72 : x
  2. Step 2: Convert to fraction form
    6,640.03/9,949.11 = 4,168.72/x
  3. Step 3: Cross multiply
    6,640.03x = 9,949.11 × 4,168.72
  4. Step 4: Simplify right side
    6,640.03x = 41,475,053.84
  5. Step 5: Solve for x
    x = 41,475,053.84/6,640.03
  6. Step 6: Final answer
    x = 6,246.21

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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.