Home / 12,226.87-18,336.60-4,729.09

Finding the Fourth Proportional to 12,226.87, 18,336.60 and 4,729.09

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Solution

The fourth proportional to 12,226.87, 18,336.60 and 4,729.09 is: 7,092.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,226.87 : 18,336.60 = 4,729.09 : x
  2. Step 2: Convert to fraction form
    12,226.87/18,336.60 = 4,729.09/x
  3. Step 3: Cross multiply
    12,226.87x = 18,336.60 × 4,729.09
  4. Step 4: Simplify right side
    12,226.87x = 86,715,431.69
  5. Step 5: Solve for x
    x = 86,715,431.69/12,226.87
  6. Step 6: Final answer
    x = 7,092.20

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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.