Home / 11,516.85-17,275.55-4,121.82

Finding the Fourth Proportional to 11,516.85, 17,275.55 and 4,121.82

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Solution

The fourth proportional to 11,516.85, 17,275.55 and 4,121.82 is: 6,182.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,516.85 : 17,275.55 = 4,121.82 : x
  2. Step 2: Convert to fraction form
    11,516.85/17,275.55 = 4,121.82/x
  3. Step 3: Cross multiply
    11,516.85x = 17,275.55 × 4,121.82
  4. Step 4: Simplify right side
    11,516.85x = 71,206,686.89
  5. Step 5: Solve for x
    x = 71,206,686.89/11,516.85
  6. Step 6: Final answer
    x = 6,182.83

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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.