Home / 13,490.62-20,234.48-3,630.89

Finding the Fourth Proportional to 13,490.62, 20,234.48 and 3,630.89

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Solution

The fourth proportional to 13,490.62, 20,234.48 and 3,630.89 is: 5,445.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,490.62 : 20,234.48 = 3,630.89 : x
  2. Step 2: Convert to fraction form
    13,490.62/20,234.48 = 3,630.89/x
  3. Step 3: Cross multiply
    13,490.62x = 20,234.48 × 3,630.89
  4. Step 4: Simplify right side
    13,490.62x = 73,469,203.52
  5. Step 5: Solve for x
    x = 73,469,203.52/13,490.62
  6. Step 6: Final answer
    x = 5,445.95

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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.