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Finding the Fourth Proportional to 8,375.90, 12,563.50 and 2,136.07

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Solution

The fourth proportional to 8,375.90, 12,563.50 and 2,136.07 is: 3,204.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,375.90 : 12,563.50 = 2,136.07 : x
  2. Step 2: Convert to fraction form
    8,375.90/12,563.50 = 2,136.07/x
  3. Step 3: Cross multiply
    8,375.90x = 12,563.50 × 2,136.07
  4. Step 4: Simplify right side
    8,375.90x = 26,836,447.29
  5. Step 5: Solve for x
    x = 26,836,447.29/8,375.90
  6. Step 6: Final answer
    x = 3,204.01

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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.