Home / 12,516.92-18,778.46-3,751.83

Finding the Fourth Proportional to 12,516.92, 18,778.46 and 3,751.83

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Solution

The fourth proportional to 12,516.92, 18,778.46 and 3,751.83 is: 5,628.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,516.92 : 18,778.46 = 3,751.83 : x
  2. Step 2: Convert to fraction form
    12,516.92/18,778.46 = 3,751.83/x
  3. Step 3: Cross multiply
    12,516.92x = 18,778.46 × 3,751.83
  4. Step 4: Simplify right side
    12,516.92x = 70,453,535.61
  5. Step 5: Solve for x
    x = 70,453,535.61/12,516.92
  6. Step 6: Final answer
    x = 5,628.66

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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.