Home / 8,426.78-12,638.13-2,583.44

Finding the Fourth Proportional to 8,426.78, 12,638.13 and 2,583.44

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Solution

The fourth proportional to 8,426.78, 12,638.13 and 2,583.44 is: 3,874.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,426.78 : 12,638.13 = 2,583.44 : x
  2. Step 2: Convert to fraction form
    8,426.78/12,638.13 = 2,583.44/x
  3. Step 3: Cross multiply
    8,426.78x = 12,638.13 × 2,583.44
  4. Step 4: Simplify right side
    8,426.78x = 32,649,787.38
  5. Step 5: Solve for x
    x = 32,649,787.38/8,426.78
  6. Step 6: Final answer
    x = 3,874.53

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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.