Home / 11,872.03-17,800.85-8,170.19

Finding the Fourth Proportional to 11,872.03, 17,800.85 and 8,170.19

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Solution

The fourth proportional to 11,872.03, 17,800.85 and 8,170.19 is: 12,250.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,872.03 : 17,800.85 = 8,170.19 : x
  2. Step 2: Convert to fraction form
    11,872.03/17,800.85 = 8,170.19/x
  3. Step 3: Cross multiply
    11,872.03x = 17,800.85 × 8,170.19
  4. Step 4: Simplify right side
    11,872.03x = 145,436,363.41
  5. Step 5: Solve for x
    x = 145,436,363.41/11,872.03
  6. Step 6: Final answer
    x = 12,250.34

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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.