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Finding the Fourth Proportional to 8,424, 12,641.76 and 4,044.96

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Solution

The fourth proportional to 8,424, 12,641.76 and 4,044.96 is: 6,070.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,424 : 12,641.76 = 4,044.96 : x
  2. Step 2: Convert to fraction form
    8,424/12,641.76 = 4,044.96/x
  3. Step 3: Cross multiply
    8,424x = 12,641.76 × 4,044.96
  4. Step 4: Simplify right side
    8,424x = 51,135,413.53
  5. Step 5: Solve for x
    x = 51,135,413.53/8,424
  6. Step 6: Final answer
    x = 6,070.21

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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.