Home / 11,831.46-17,738.28-7,150.48

Finding the Fourth Proportional to 11,831.46, 17,738.28 and 7,150.48

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Solution

The fourth proportional to 11,831.46, 17,738.28 and 7,150.48 is: 10,720.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,831.46 : 17,738.28 = 7,150.48 : x
  2. Step 2: Convert to fraction form
    11,831.46/17,738.28 = 7,150.48/x
  3. Step 3: Cross multiply
    11,831.46x = 17,738.28 × 7,150.48
  4. Step 4: Simplify right side
    11,831.46x = 126,837,216.37
  5. Step 5: Solve for x
    x = 126,837,216.37/11,831.46
  6. Step 6: Final answer
    x = 10,720.34

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1.5x scale

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.