Home / 11,960.15-17,940.96-3,640.77

Finding the Fourth Proportional to 11,960.15, 17,940.96 and 3,640.77

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Solution

The fourth proportional to 11,960.15, 17,940.96 and 3,640.77 is: 5,461.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,960.15 : 17,940.96 = 3,640.77 : x
  2. Step 2: Convert to fraction form
    11,960.15/17,940.96 = 3,640.77/x
  3. Step 3: Cross multiply
    11,960.15x = 17,940.96 × 3,640.77
  4. Step 4: Simplify right side
    11,960.15x = 65,318,908.94
  5. Step 5: Solve for x
    x = 65,318,908.94/11,960.15
  6. Step 6: Final answer
    x = 5,461.38

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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.