Home / 9,205.11-12,704.51-5,620.86

Finding the Fourth Proportional to 9,205.11, 12,704.51 and 5,620.86

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Solution

The fourth proportional to 9,205.11, 12,704.51 and 5,620.86 is: 7,757.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,205.11 : 12,704.51 = 5,620.86 : x
  2. Step 2: Convert to fraction form
    9,205.11/12,704.51 = 5,620.86/x
  3. Step 3: Cross multiply
    9,205.11x = 12,704.51 × 5,620.86
  4. Step 4: Simplify right side
    9,205.11x = 71,410,286.13
  5. Step 5: Solve for x
    x = 71,410,286.13/9,205.11
  6. Step 6: Final answer
    x = 7,757.68

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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.