Home / 13,520.45-20,273.36-4,157.66

Finding the Fourth Proportional to 13,520.45, 20,273.36 and 4,157.66

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Solution

The fourth proportional to 13,520.45, 20,273.36 and 4,157.66 is: 6,234.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,520.45 : 20,273.36 = 4,157.66 : x
  2. Step 2: Convert to fraction form
    13,520.45/20,273.36 = 4,157.66/x
  3. Step 3: Cross multiply
    13,520.45x = 20,273.36 × 4,157.66
  4. Step 4: Simplify right side
    13,520.45x = 84,289,615.78
  5. Step 5: Solve for x
    x = 84,289,615.78/13,520.45
  6. Step 6: Final answer
    x = 6,234.23

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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.