Home / 13,467.60-20,201.40-8,542.80

Finding the Fourth Proportional to 13,467.60, 20,201.40 and 8,542.80

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Solution

The fourth proportional to 13,467.60, 20,201.40 and 8,542.80 is: 12,814.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,467.60 : 20,201.40 = 8,542.80 : x
  2. Step 2: Convert to fraction form
    13,467.60/20,201.40 = 8,542.80/x
  3. Step 3: Cross multiply
    13,467.60x = 20,201.40 × 8,542.80
  4. Step 4: Simplify right side
    13,467.60x = 172,576,519.92
  5. Step 5: Solve for x
    x = 172,576,519.92/13,467.60
  6. Step 6: Final answer
    x = 12,814.20

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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.