Home / 11,516.54-17,275.50-4,121.78

Finding the Fourth Proportional to 11,516.54, 17,275.50 and 4,121.78

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Solution

The fourth proportional to 11,516.54, 17,275.50 and 4,121.78 is: 6,182.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,516.54 : 17,275.50 = 4,121.78 : x
  2. Step 2: Convert to fraction form
    11,516.54/17,275.50 = 4,121.78/x
  3. Step 3: Cross multiply
    11,516.54x = 17,275.50 × 4,121.78
  4. Step 4: Simplify right side
    11,516.54x = 71,205,810.39
  5. Step 5: Solve for x
    x = 71,205,810.39/11,516.54
  6. Step 6: Final answer
    x = 6,182.92

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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.