Home / 8,125.52-12,189.56-3,445.54

Finding the Fourth Proportional to 8,125.52, 12,189.56 and 3,445.54

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Solution

The fourth proportional to 8,125.52, 12,189.56 and 3,445.54 is: 5,168.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,125.52 : 12,189.56 = 3,445.54 : x
  2. Step 2: Convert to fraction form
    8,125.52/12,189.56 = 3,445.54/x
  3. Step 3: Cross multiply
    8,125.52x = 12,189.56 × 3,445.54
  4. Step 4: Simplify right side
    8,125.52x = 41,999,616.56
  5. Step 5: Solve for x
    x = 41,999,616.56/8,125.52
  6. Step 6: Final answer
    x = 5,168.85

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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.