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Finding the Fourth Proportional to 7,351.03, 10,144.47 and 3,993.87

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Solution

The fourth proportional to 7,351.03, 10,144.47 and 3,993.87 is: 5,511.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,351.03 : 10,144.47 = 3,993.87 : x
  2. Step 2: Convert to fraction form
    7,351.03/10,144.47 = 3,993.87/x
  3. Step 3: Cross multiply
    7,351.03x = 10,144.47 × 3,993.87
  4. Step 4: Simplify right side
    7,351.03x = 40,515,674.43
  5. Step 5: Solve for x
    x = 40,515,674.43/7,351.03
  6. Step 6: Final answer
    x = 5,511.57

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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.