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Finding the Fourth Proportional to 7,213.62, 9,955.08 and 4,229.04

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Solution

The fourth proportional to 7,213.62, 9,955.08 and 4,229.04 is: 5,836.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,213.62 : 9,955.08 = 4,229.04 : x
  2. Step 2: Convert to fraction form
    7,213.62/9,955.08 = 4,229.04/x
  3. Step 3: Cross multiply
    7,213.62x = 9,955.08 × 4,229.04
  4. Step 4: Simplify right side
    7,213.62x = 42,100,431.52
  5. Step 5: Solve for x
    x = 42,100,431.52/7,213.62
  6. Step 6: Final answer
    x = 5,836.24

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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.