Home / 8,305.20-12,455.09-2,757.06

Finding the Fourth Proportional to 8,305.20, 12,455.09 and 2,757.06

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Solution

The fourth proportional to 8,305.20, 12,455.09 and 2,757.06 is: 4,134.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,305.20 : 12,455.09 = 2,757.06 : x
  2. Step 2: Convert to fraction form
    8,305.20/12,455.09 = 2,757.06/x
  3. Step 3: Cross multiply
    8,305.20x = 12,455.09 × 2,757.06
  4. Step 4: Simplify right side
    8,305.20x = 34,339,430.44
  5. Step 5: Solve for x
    x = 34,339,430.44/8,305.20
  6. Step 6: Final answer
    x = 4,134.69

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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.