Home / 7,940.52-11,917.80-5,738.76

Finding the Fourth Proportional to 7,940.52, 11,917.80 and 5,738.76

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Solution

The fourth proportional to 7,940.52, 11,917.80 and 5,738.76 is: 8,613.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,940.52 : 11,917.80 = 5,738.76 : x
  2. Step 2: Convert to fraction form
    7,940.52/11,917.80 = 5,738.76/x
  3. Step 3: Cross multiply
    7,940.52x = 11,917.80 × 5,738.76
  4. Step 4: Simplify right side
    7,940.52x = 68,393,393.93
  5. Step 5: Solve for x
    x = 68,393,393.93/7,940.52
  6. Step 6: Final answer
    x = 8,613.21

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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.