Home / 13,380.60-20,060.94-8,116.74

Finding the Fourth Proportional to 13,380.60, 20,060.94 and 8,116.74

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Solution

The fourth proportional to 13,380.60, 20,060.94 and 8,116.74 is: 12,169.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,380.60 : 20,060.94 = 8,116.74 : x
  2. Step 2: Convert to fraction form
    13,380.60/20,060.94 = 8,116.74/x
  3. Step 3: Cross multiply
    13,380.60x = 20,060.94 × 8,116.74
  4. Step 4: Simplify right side
    13,380.60x = 162,829,434.14
  5. Step 5: Solve for x
    x = 162,829,434.14/13,380.60
  6. Step 6: Final answer
    x = 12,169.07

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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.