Home / 13,522.55-20,285.75-4,163.36

Finding the Fourth Proportional to 13,522.55, 20,285.75 and 4,163.36

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Solution

The fourth proportional to 13,522.55, 20,285.75 and 4,163.36 is: 6,245.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,522.55 : 20,285.75 = 4,163.36 : x
  2. Step 2: Convert to fraction form
    13,522.55/20,285.75 = 4,163.36/x
  3. Step 3: Cross multiply
    13,522.55x = 20,285.75 × 4,163.36
  4. Step 4: Simplify right side
    13,522.55x = 84,456,789.10
  5. Step 5: Solve for x
    x = 84,456,789.10/13,522.55
  6. Step 6: Final answer
    x = 6,245.63

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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.