Home / 8,625.21-12,937.82-2,781.83

Finding the Fourth Proportional to 8,625.21, 12,937.82 and 2,781.83

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Solution

The fourth proportional to 8,625.21, 12,937.82 and 2,781.83 is: 4,172.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,625.21 : 12,937.82 = 2,781.83 : x
  2. Step 2: Convert to fraction form
    8,625.21/12,937.82 = 2,781.83/x
  3. Step 3: Cross multiply
    8,625.21x = 12,937.82 × 2,781.83
  4. Step 4: Simplify right side
    8,625.21x = 35,990,758.08
  5. Step 5: Solve for x
    x = 35,990,758.08/8,625.21
  6. Step 6: Final answer
    x = 4,172.74

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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.