Home / 12,072.11-18,110.72-3,751.92

Finding the Fourth Proportional to 12,072.11, 18,110.72 and 3,751.92

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Solution

The fourth proportional to 12,072.11, 18,110.72 and 3,751.92 is: 5,628.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,072.11 : 18,110.72 = 3,751.92 : x
  2. Step 2: Convert to fraction form
    12,072.11/18,110.72 = 3,751.92/x
  3. Step 3: Cross multiply
    12,072.11x = 18,110.72 × 3,751.92
  4. Step 4: Simplify right side
    12,072.11x = 67,949,981.96
  5. Step 5: Solve for x
    x = 67,949,981.96/12,072.11
  6. Step 6: Final answer
    x = 5,628.68

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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.