Home / 7,147.60-9,863.40-4,163.52

Finding the Fourth Proportional to 7,147.60, 9,863.40 and 4,163.52

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Solution

The fourth proportional to 7,147.60, 9,863.40 and 4,163.52 is: 5,745.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,147.60 : 9,863.40 = 4,163.52 : x
  2. Step 2: Convert to fraction form
    7,147.60/9,863.40 = 4,163.52/x
  3. Step 3: Cross multiply
    7,147.60x = 9,863.40 × 4,163.52
  4. Step 4: Simplify right side
    7,147.60x = 41,066,463.17
  5. Step 5: Solve for x
    x = 41,066,463.17/7,147.60
  6. Step 6: Final answer
    x = 5,745.49

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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.