Home / 12,226.08-18,336.78-3,458.88

Finding the Fourth Proportional to 12,226.08, 18,336.78 and 3,458.88

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Solution

The fourth proportional to 12,226.08, 18,336.78 and 3,458.88 is: 5,187.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,226.08 : 18,336.78 = 3,458.88 : x
  2. Step 2: Convert to fraction form
    12,226.08/18,336.78 = 3,458.88/x
  3. Step 3: Cross multiply
    12,226.08x = 18,336.78 × 3,458.88
  4. Step 4: Simplify right side
    12,226.08x = 63,424,721.61
  5. Step 5: Solve for x
    x = 63,424,721.61/12,226.08
  6. Step 6: Final answer
    x = 5,187.66

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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.