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Finding the Fourth Proportional to 8,831.69, 12,180.68 and 5,809.92

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Solution

The fourth proportional to 8,831.69, 12,180.68 and 5,809.92 is: 8,013.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,831.69 : 12,180.68 = 5,809.92 : x
  2. Step 2: Convert to fraction form
    8,831.69/12,180.68 = 5,809.92/x
  3. Step 3: Cross multiply
    8,831.69x = 12,180.68 × 5,809.92
  4. Step 4: Simplify right side
    8,831.69x = 70,768,686.39
  5. Step 5: Solve for x
    x = 70,768,686.39/8,831.69
  6. Step 6: Final answer
    x = 8,013.04

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.