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Finding the Fourth Proportional to 8,831.43, 12,187.34 and 5,054.58

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Solution

The fourth proportional to 8,831.43, 12,187.34 and 5,054.58 is: 6,975.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,831.43 : 12,187.34 = 5,054.58 : x
  2. Step 2: Convert to fraction form
    8,831.43/12,187.34 = 5,054.58/x
  3. Step 3: Cross multiply
    8,831.43x = 12,187.34 × 5,054.58
  4. Step 4: Simplify right side
    8,831.43x = 61,601,878.70
  5. Step 5: Solve for x
    x = 61,601,878.70/8,831.43
  6. Step 6: Final answer
    x = 6,975.30

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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.