Home / 8,116.74-12,172.98-3,672.68

Finding the Fourth Proportional to 8,116.74, 12,172.98 and 3,672.68

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Solution

The fourth proportional to 8,116.74, 12,172.98 and 3,672.68 is: 5,508.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,116.74 : 12,172.98 = 3,672.68 : x
  2. Step 2: Convert to fraction form
    8,116.74/12,172.98 = 3,672.68/x
  3. Step 3: Cross multiply
    8,116.74x = 12,172.98 × 3,672.68
  4. Step 4: Simplify right side
    8,116.74x = 44,707,413.09
  5. Step 5: Solve for x
    x = 44,707,413.09/8,116.74
  6. Step 6: Final answer
    x = 5,508.05

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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.