Home / 8,309.22-12,459.16-2,759.59

Finding the Fourth Proportional to 8,309.22, 12,459.16 and 2,759.59

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Solution

The fourth proportional to 8,309.22, 12,459.16 and 2,759.59 is: 4,137.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,309.22 : 12,459.16 = 2,759.59 : x
  2. Step 2: Convert to fraction form
    8,309.22/12,459.16 = 2,759.59/x
  3. Step 3: Cross multiply
    8,309.22x = 12,459.16 × 2,759.59
  4. Step 4: Simplify right side
    8,309.22x = 34,382,176.85
  5. Step 5: Solve for x
    x = 34,382,176.85/8,309.22
  6. Step 6: Final answer
    x = 4,137.83

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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.