Home / 13,545.39-20,311.70-8,793.86

Finding the Fourth Proportional to 13,545.39, 20,311.70 and 8,793.86

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Solution

The fourth proportional to 13,545.39, 20,311.70 and 8,793.86 is: 13,186.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,545.39 : 20,311.70 = 8,793.86 : x
  2. Step 2: Convert to fraction form
    13,545.39/20,311.70 = 8,793.86/x
  3. Step 3: Cross multiply
    13,545.39x = 20,311.70 × 8,793.86
  4. Step 4: Simplify right side
    13,545.39x = 178,618,268.15
  5. Step 5: Solve for x
    x = 178,618,268.15/13,545.39
  6. Step 6: Final answer
    x = 13,186.65

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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.