Home / 13,485.88-20,228.62-8,222.44

Finding the Fourth Proportional to 13,485.88, 20,228.62 and 8,222.44

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Solution

The fourth proportional to 13,485.88, 20,228.62 and 8,222.44 is: 12,333.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,485.88 : 20,228.62 = 8,222.44 : x
  2. Step 2: Convert to fraction form
    13,485.88/20,228.62 = 8,222.44/x
  3. Step 3: Cross multiply
    13,485.88x = 20,228.62 × 8,222.44
  4. Step 4: Simplify right side
    13,485.88x = 166,328,614.23
  5. Step 5: Solve for x
    x = 166,328,614.23/13,485.88
  6. Step 6: Final answer
    x = 12,333.54

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Similar ratio
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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.