Home / 12,831.20-19,247.48-4,066.79

Finding the Fourth Proportional to 12,831.20, 19,247.48 and 4,066.79

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Solution

The fourth proportional to 12,831.20, 19,247.48 and 4,066.79 is: 6,100.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,831.20 : 19,247.48 = 4,066.79 : x
  2. Step 2: Convert to fraction form
    12,831.20/19,247.48 = 4,066.79/x
  3. Step 3: Cross multiply
    12,831.20x = 19,247.48 × 4,066.79
  4. Step 4: Simplify right side
    12,831.20x = 78,275,550.20
  5. Step 5: Solve for x
    x = 78,275,550.20/12,831.20
  6. Step 6: Final answer
    x = 6,100.41

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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.