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Finding the Fourth Proportional to 7,072.94, 10,608.04 and 6,721.70

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Solution

The fourth proportional to 7,072.94, 10,608.04 and 6,721.70 is: 10,081.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,072.94 : 10,608.04 = 6,721.70 : x
  2. Step 2: Convert to fraction form
    7,072.94/10,608.04 = 6,721.70/x
  3. Step 3: Cross multiply
    7,072.94x = 10,608.04 × 6,721.70
  4. Step 4: Simplify right side
    7,072.94x = 71,304,028.86
  5. Step 5: Solve for x
    x = 71,304,028.86/7,072.94
  6. Step 6: Final answer
    x = 10,081.25

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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.