Home / 8,226.56-12,339.99-2,679.89

Finding the Fourth Proportional to 8,226.56, 12,339.99 and 2,679.89

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Solution

The fourth proportional to 8,226.56, 12,339.99 and 2,679.89 is: 4,019.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,226.56 : 12,339.99 = 2,679.89 : x
  2. Step 2: Convert to fraction form
    8,226.56/12,339.99 = 2,679.89/x
  3. Step 3: Cross multiply
    8,226.56x = 12,339.99 × 2,679.89
  4. Step 4: Simplify right side
    8,226.56x = 33,069,754.10
  5. Step 5: Solve for x
    x = 33,069,754.10/8,226.56
  6. Step 6: Final answer
    x = 4,019.88

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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.