Home / 8,351.03-12,520.60-4,188.04

Finding the Fourth Proportional to 8,351.03, 12,520.60 and 4,188.04

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Solution

The fourth proportional to 8,351.03, 12,520.60 and 4,188.04 is: 6,279.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,351.03 : 12,520.60 = 4,188.04 : x
  2. Step 2: Convert to fraction form
    8,351.03/12,520.60 = 4,188.04/x
  3. Step 3: Cross multiply
    8,351.03x = 12,520.60 × 4,188.04
  4. Step 4: Simplify right side
    8,351.03x = 52,436,731.85
  5. Step 5: Solve for x
    x = 52,436,731.85/8,351.03
  6. Step 6: Final answer
    x = 6,279.07

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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.