Home / 10,831.38-16,242.21-3,434.46

Finding the Fourth Proportional to 10,831.38, 16,242.21 and 3,434.46

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Solution

The fourth proportional to 10,831.38, 16,242.21 and 3,434.46 is: 5,150.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,831.38 : 16,242.21 = 3,434.46 : x
  2. Step 2: Convert to fraction form
    10,831.38/16,242.21 = 3,434.46/x
  3. Step 3: Cross multiply
    10,831.38x = 16,242.21 × 3,434.46
  4. Step 4: Simplify right side
    10,831.38x = 55,783,220.56
  5. Step 5: Solve for x
    x = 55,783,220.56/10,831.38
  6. Step 6: Final answer
    x = 5,150.15

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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.