Home / 10,119.40-15,179.40-2,723.86

Finding the Fourth Proportional to 10,119.40, 15,179.40 and 2,723.86

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Solution

The fourth proportional to 10,119.40, 15,179.40 and 2,723.86 is: 4,085.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,119.40 : 15,179.40 = 2,723.86 : x
  2. Step 2: Convert to fraction form
    10,119.40/15,179.40 = 2,723.86/x
  3. Step 3: Cross multiply
    10,119.40x = 15,179.40 × 2,723.86
  4. Step 4: Simplify right side
    10,119.40x = 41,346,560.48
  5. Step 5: Solve for x
    x = 41,346,560.48/10,119.40
  6. Step 6: Final answer
    x = 4,085.87

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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.