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Finding the Fourth Proportional to 8,578.58, 11,841.36 and 5,042.84

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Solution

The fourth proportional to 8,578.58, 11,841.36 and 5,042.84 is: 6,960.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,578.58 : 11,841.36 = 5,042.84 : x
  2. Step 2: Convert to fraction form
    8,578.58/11,841.36 = 5,042.84/x
  3. Step 3: Cross multiply
    8,578.58x = 11,841.36 × 5,042.84
  4. Step 4: Simplify right side
    8,578.58x = 59,714,083.86
  5. Step 5: Solve for x
    x = 59,714,083.86/8,578.58
  6. Step 6: Final answer
    x = 6,960.84

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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.