Home / 13,757.72-20,622.36-5,426.44

Finding the Fourth Proportional to 13,757.72, 20,622.36 and 5,426.44

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Solution

The fourth proportional to 13,757.72, 20,622.36 and 5,426.44 is: 8,134.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,757.72 : 20,622.36 = 5,426.44 : x
  2. Step 2: Convert to fraction form
    13,757.72/20,622.36 = 5,426.44/x
  3. Step 3: Cross multiply
    13,757.72x = 20,622.36 × 5,426.44
  4. Step 4: Simplify right side
    13,757.72x = 111,905,999.20
  5. Step 5: Solve for x
    x = 111,905,999.20/13,757.72
  6. Step 6: Final answer
    x = 8,134.05

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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.