Home / 13,682.43-20,562.12-8,136.77

Finding the Fourth Proportional to 13,682.43, 20,562.12 and 8,136.77

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Solution

The fourth proportional to 13,682.43, 20,562.12 and 8,136.77 is: 12,228.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,682.43 : 20,562.12 = 8,136.77 : x
  2. Step 2: Convert to fraction form
    13,682.43/20,562.12 = 8,136.77/x
  3. Step 3: Cross multiply
    13,682.43x = 20,562.12 × 8,136.77
  4. Step 4: Simplify right side
    13,682.43x = 167,309,138.34
  5. Step 5: Solve for x
    x = 167,309,138.34/13,682.43
  6. Step 6: Final answer
    x = 12,228.03

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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.