Home / 10,121.79-15,177.83-5,738.07

Finding the Fourth Proportional to 10,121.79, 15,177.83 and 5,738.07

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Solution

The fourth proportional to 10,121.79, 15,177.83 and 5,738.07 is: 8,604.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,121.79 : 15,177.83 = 5,738.07 : x
  2. Step 2: Convert to fraction form
    10,121.79/15,177.83 = 5,738.07/x
  3. Step 3: Cross multiply
    10,121.79x = 15,177.83 × 5,738.07
  4. Step 4: Simplify right side
    10,121.79x = 87,091,422.30
  5. Step 5: Solve for x
    x = 87,091,422.30/10,121.79
  6. Step 6: Final answer
    x = 8,604.35

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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.