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Finding the Fourth Proportional to 7,157.28, 10,738.22 and 5,081.39

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Solution

The fourth proportional to 7,157.28, 10,738.22 and 5,081.39 is: 7,623.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,157.28 : 10,738.22 = 5,081.39 : x
  2. Step 2: Convert to fraction form
    7,157.28/10,738.22 = 5,081.39/x
  3. Step 3: Cross multiply
    7,157.28x = 10,738.22 × 5,081.39
  4. Step 4: Simplify right side
    7,157.28x = 54,565,004.63
  5. Step 5: Solve for x
    x = 54,565,004.63/7,157.28
  6. Step 6: Final answer
    x = 7,623.71

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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.