Home / 8,831.62-13,238.79-4,217.86

Finding the Fourth Proportional to 8,831.62, 13,238.79 and 4,217.86

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Solution

The fourth proportional to 8,831.62, 13,238.79 and 4,217.86 is: 6,322.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,831.62 : 13,238.79 = 4,217.86 : x
  2. Step 2: Convert to fraction form
    8,831.62/13,238.79 = 4,217.86/x
  3. Step 3: Cross multiply
    8,831.62x = 13,238.79 × 4,217.86
  4. Step 4: Simplify right side
    8,831.62x = 55,839,362.79
  5. Step 5: Solve for x
    x = 55,839,362.79/8,831.62
  6. Step 6: Final answer
    x = 6,322.66

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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.