Home / 11,818.49-17,729.84-3,921.48

Finding the Fourth Proportional to 11,818.49, 17,729.84 and 3,921.48

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Solution

The fourth proportional to 11,818.49, 17,729.84 and 3,921.48 is: 5,882.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,818.49 : 17,729.84 = 3,921.48 : x
  2. Step 2: Convert to fraction form
    11,818.49/17,729.84 = 3,921.48/x
  3. Step 3: Cross multiply
    11,818.49x = 17,729.84 × 3,921.48
  4. Step 4: Simplify right side
    11,818.49x = 69,527,173.54
  5. Step 5: Solve for x
    x = 69,527,173.54/11,818.49
  6. Step 6: Final answer
    x = 5,882.92

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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.