Home / 12,450.59-18,679.54-3,685.73

Finding the Fourth Proportional to 12,450.59, 18,679.54 and 3,685.73

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Solution

The fourth proportional to 12,450.59, 18,679.54 and 3,685.73 is: 5,529.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,450.59 : 18,679.54 = 3,685.73 : x
  2. Step 2: Convert to fraction form
    12,450.59/18,679.54 = 3,685.73/x
  3. Step 3: Cross multiply
    12,450.59x = 18,679.54 × 3,685.73
  4. Step 4: Simplify right side
    12,450.59x = 68,847,687.43
  5. Step 5: Solve for x
    x = 68,847,687.43/12,450.59
  6. Step 6: Final answer
    x = 5,529.67

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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.