Home / 13,831.26-20,752.92-7,255.86

Finding the Fourth Proportional to 13,831.26, 20,752.92 and 7,255.86

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Solution

The fourth proportional to 13,831.26, 20,752.92 and 7,255.86 is: 10,886.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,831.26 : 20,752.92 = 7,255.86 : x
  2. Step 2: Convert to fraction form
    13,831.26/20,752.92 = 7,255.86/x
  3. Step 3: Cross multiply
    13,831.26x = 20,752.92 × 7,255.86
  4. Step 4: Simplify right side
    13,831.26x = 150,580,282.11
  5. Step 5: Solve for x
    x = 150,580,282.11/13,831.26
  6. Step 6: Final answer
    x = 10,886.95

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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.