Home / 9,431.43-14,147.21-2,857.60

Finding the Fourth Proportional to 9,431.43, 14,147.21 and 2,857.60

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Solution

The fourth proportional to 9,431.43, 14,147.21 and 2,857.60 is: 4,286.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,431.43 : 14,147.21 = 2,857.60 : x
  2. Step 2: Convert to fraction form
    9,431.43/14,147.21 = 2,857.60/x
  3. Step 3: Cross multiply
    9,431.43x = 14,147.21 × 2,857.60
  4. Step 4: Simplify right side
    9,431.43x = 40,427,067.30
  5. Step 5: Solve for x
    x = 40,427,067.30/9,431.43
  6. Step 6: Final answer
    x = 4,286.42

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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.