Home / 12,425.58-18,620.88-6,179.70

Finding the Fourth Proportional to 12,425.58, 18,620.88 and 6,179.70

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Solution

The fourth proportional to 12,425.58, 18,620.88 and 6,179.70 is: 9,260.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,425.58 : 18,620.88 = 6,179.70 : x
  2. Step 2: Convert to fraction form
    12,425.58/18,620.88 = 6,179.70/x
  3. Step 3: Cross multiply
    12,425.58x = 18,620.88 × 6,179.70
  4. Step 4: Simplify right side
    12,425.58x = 115,071,452.14
  5. Step 5: Solve for x
    x = 115,071,452.14/12,425.58
  6. Step 6: Final answer
    x = 9,260.85

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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.