Home / 12,815.44-19,226.41-3,581.44

Finding the Fourth Proportional to 12,815.44, 19,226.41 and 3,581.44

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Solution

The fourth proportional to 12,815.44, 19,226.41 and 3,581.44 is: 5,373.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,815.44 : 19,226.41 = 3,581.44 : x
  2. Step 2: Convert to fraction form
    12,815.44/19,226.41 = 3,581.44/x
  3. Step 3: Cross multiply
    12,815.44x = 19,226.41 × 3,581.44
  4. Step 4: Simplify right side
    12,815.44x = 68,858,176.81
  5. Step 5: Solve for x
    x = 68,858,176.81/12,815.44
  6. Step 6: Final answer
    x = 5,373.06

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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.