Home / 11,142.15-16,680.42-8,233.44

Finding the Fourth Proportional to 11,142.15, 16,680.42 and 8,233.44

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Solution

The fourth proportional to 11,142.15, 16,680.42 and 8,233.44 is: 12,325.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,142.15 : 16,680.42 = 8,233.44 : x
  2. Step 2: Convert to fraction form
    11,142.15/16,680.42 = 8,233.44/x
  3. Step 3: Cross multiply
    11,142.15x = 16,680.42 × 8,233.44
  4. Step 4: Simplify right side
    11,142.15x = 137,337,237.24
  5. Step 5: Solve for x
    x = 137,337,237.24/11,142.15
  6. Step 6: Final answer
    x = 12,325.92

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1.5x scale

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.