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Finding the Fourth Proportional to 8,781.41, 12,118.37 and 4,802.54

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Solution

The fourth proportional to 8,781.41, 12,118.37 and 4,802.54 is: 6,627.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,781.41 : 12,118.37 = 4,802.54 : x
  2. Step 2: Convert to fraction form
    8,781.41/12,118.37 = 4,802.54/x
  3. Step 3: Cross multiply
    8,781.41x = 12,118.37 × 4,802.54
  4. Step 4: Simplify right side
    8,781.41x = 58,198,872.06
  5. Step 5: Solve for x
    x = 58,198,872.06/8,781.41
  6. Step 6: Final answer
    x = 6,627.51

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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.