Home / 12,544.40-18,819.41-4,223.78

Finding the Fourth Proportional to 12,544.40, 18,819.41 and 4,223.78

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Solution

The fourth proportional to 12,544.40, 18,819.41 and 4,223.78 is: 6,336.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,544.40 : 18,819.41 = 4,223.78 : x
  2. Step 2: Convert to fraction form
    12,544.40/18,819.41 = 4,223.78/x
  3. Step 3: Cross multiply
    12,544.40x = 18,819.41 × 4,223.78
  4. Step 4: Simplify right side
    12,544.40x = 79,488,964.03
  5. Step 5: Solve for x
    x = 79,488,964.03/12,544.40
  6. Step 6: Final answer
    x = 6,336.61

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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.