Home / 12,815.56-19,226.58-3,581.56

Finding the Fourth Proportional to 12,815.56, 19,226.58 and 3,581.56

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Solution

The fourth proportional to 12,815.56, 19,226.58 and 3,581.56 is: 5,373.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,815.56 : 19,226.58 = 3,581.56 : x
  2. Step 2: Convert to fraction form
    12,815.56/19,226.58 = 3,581.56/x
  3. Step 3: Cross multiply
    12,815.56x = 19,226.58 × 3,581.56
  4. Step 4: Simplify right side
    12,815.56x = 68,861,149.86
  5. Step 5: Solve for x
    x = 68,861,149.86/12,815.56
  6. Step 6: Final answer
    x = 5,373.25

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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.