Home / 10,120.24-15,179.40-2,724.42

Finding the Fourth Proportional to 10,120.24, 15,179.40 and 2,724.42

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Solution

The fourth proportional to 10,120.24, 15,179.40 and 2,724.42 is: 4,086.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,120.24 : 15,179.40 = 2,724.42 : x
  2. Step 2: Convert to fraction form
    10,120.24/15,179.40 = 2,724.42/x
  3. Step 3: Cross multiply
    10,120.24x = 15,179.40 × 2,724.42
  4. Step 4: Simplify right side
    10,120.24x = 41,355,060.95
  5. Step 5: Solve for x
    x = 41,355,060.95/10,120.24
  6. Step 6: Final answer
    x = 4,086.37

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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.