Home / 10,072.99-15,105.87-3,831.34

Finding the Fourth Proportional to 10,072.99, 15,105.87 and 3,831.34

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Solution

The fourth proportional to 10,072.99, 15,105.87 and 3,831.34 is: 5,745.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,072.99 : 15,105.87 = 3,831.34 : x
  2. Step 2: Convert to fraction form
    10,072.99/15,105.87 = 3,831.34/x
  3. Step 3: Cross multiply
    10,072.99x = 15,105.87 × 3,831.34
  4. Step 4: Simplify right side
    10,072.99x = 57,875,723.97
  5. Step 5: Solve for x
    x = 57,875,723.97/10,072.99
  6. Step 6: Final answer
    x = 5,745.64

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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.