Home / 13,517.70-20,276.55-8,268.90

Finding the Fourth Proportional to 13,517.70, 20,276.55 and 8,268.90

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Solution

The fourth proportional to 13,517.70, 20,276.55 and 8,268.90 is: 12,403.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,517.70 : 20,276.55 = 8,268.90 : x
  2. Step 2: Convert to fraction form
    13,517.70/20,276.55 = 8,268.90/x
  3. Step 3: Cross multiply
    13,517.70x = 20,276.55 × 8,268.90
  4. Step 4: Simplify right side
    13,517.70x = 167,664,764.30
  5. Step 5: Solve for x
    x = 167,664,764.30/13,517.70
  6. Step 6: Final answer
    x = 12,403.35

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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.