Home / 13,380.09-20,060.20-8,116.26

Finding the Fourth Proportional to 13,380.09, 20,060.20 and 8,116.26

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Solution

The fourth proportional to 13,380.09, 20,060.20 and 8,116.26 is: 12,168.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,380.09 : 20,060.20 = 8,116.26 : x
  2. Step 2: Convert to fraction form
    13,380.09/20,060.20 = 8,116.26/x
  3. Step 3: Cross multiply
    13,380.09x = 20,060.20 × 8,116.26
  4. Step 4: Simplify right side
    13,380.09x = 162,813,798.85
  5. Step 5: Solve for x
    x = 162,813,798.85/13,380.09
  6. Step 6: Final answer
    x = 12,168.36

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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.