Home / 9,199.44-12,694.59-5,220.63

Finding the Fourth Proportional to 9,199.44, 12,694.59 and 5,220.63

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Solution

The fourth proportional to 9,199.44, 12,694.59 and 5,220.63 is: 7,204.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,199.44 : 12,694.59 = 5,220.63 : x
  2. Step 2: Convert to fraction form
    9,199.44/12,694.59 = 5,220.63/x
  3. Step 3: Cross multiply
    9,199.44x = 12,694.59 × 5,220.63
  4. Step 4: Simplify right side
    9,199.44x = 66,273,757.39
  5. Step 5: Solve for x
    x = 66,273,757.39/9,199.44
  6. Step 6: Final answer
    x = 7,204.11

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Double scale
Find fourth proportional to 9,200.44, 12,695.97 and 5,221.63
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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.