Home / 8,266.61-12,389.37-3,874.39

Finding the Fourth Proportional to 8,266.61, 12,389.37 and 3,874.39

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Solution

The fourth proportional to 8,266.61, 12,389.37 and 3,874.39 is: 5,806.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,266.61 : 12,389.37 = 3,874.39 : x
  2. Step 2: Convert to fraction form
    8,266.61/12,389.37 = 3,874.39/x
  3. Step 3: Cross multiply
    8,266.61x = 12,389.37 × 3,874.39
  4. Step 4: Simplify right side
    8,266.61x = 48,001,251.23
  5. Step 5: Solve for x
    x = 48,001,251.23/8,266.61
  6. Step 6: Final answer
    x = 5,806.64

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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.