Home / 13,778.24-20,647.04-8,150.09

Finding the Fourth Proportional to 13,778.24, 20,647.04 and 8,150.09

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Solution

The fourth proportional to 13,778.24, 20,647.04 and 8,150.09 is: 12,213.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,778.24 : 20,647.04 = 8,150.09 : x
  2. Step 2: Convert to fraction form
    13,778.24/20,647.04 = 8,150.09/x
  3. Step 3: Cross multiply
    13,778.24x = 20,647.04 × 8,150.09
  4. Step 4: Simplify right side
    13,778.24x = 168,275,090.25
  5. Step 5: Solve for x
    x = 168,275,090.25/13,778.24
  6. Step 6: Final answer
    x = 12,213.11

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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.