Home / 10,112.99-15,168.87-3,786.62

Finding the Fourth Proportional to 10,112.99, 15,168.87 and 3,786.62

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Solution

The fourth proportional to 10,112.99, 15,168.87 and 3,786.62 is: 5,679.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,112.99 : 15,168.87 = 3,786.62 : x
  2. Step 2: Convert to fraction form
    10,112.99/15,168.87 = 3,786.62/x
  3. Step 3: Cross multiply
    10,112.99x = 15,168.87 × 3,786.62
  4. Step 4: Simplify right side
    10,112.99x = 57,438,670.68
  5. Step 5: Solve for x
    x = 57,438,670.68/10,112.99
  6. Step 6: Final answer
    x = 5,679.70

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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.