Home / 13,563.72-20,343.96-3,703.86

Finding the Fourth Proportional to 13,563.72, 20,343.96 and 3,703.86

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Solution

The fourth proportional to 13,563.72, 20,343.96 and 3,703.86 is: 5,555.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,563.72 : 20,343.96 = 3,703.86 : x
  2. Step 2: Convert to fraction form
    13,563.72/20,343.96 = 3,703.86/x
  3. Step 3: Cross multiply
    13,563.72x = 20,343.96 × 3,703.86
  4. Step 4: Simplify right side
    13,563.72x = 75,351,179.69
  5. Step 5: Solve for x
    x = 75,351,179.69/13,563.72
  6. Step 6: Final answer
    x = 5,555.35

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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.