Home / 9,143.79-13,717.62-3,220.43

Finding the Fourth Proportional to 9,143.79, 13,717.62 and 3,220.43

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Solution

The fourth proportional to 9,143.79, 13,717.62 and 3,220.43 is: 4,831.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,143.79 : 13,717.62 = 3,220.43 : x
  2. Step 2: Convert to fraction form
    9,143.79/13,717.62 = 3,220.43/x
  3. Step 3: Cross multiply
    9,143.79x = 13,717.62 × 3,220.43
  4. Step 4: Simplify right side
    9,143.79x = 44,176,668.54
  5. Step 5: Solve for x
    x = 44,176,668.54/9,143.79
  6. Step 6: Final answer
    x = 4,831.33

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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.