Home / 13,769.93-20,654.85-3,909.23

Finding the Fourth Proportional to 13,769.93, 20,654.85 and 3,909.23

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Solution

The fourth proportional to 13,769.93, 20,654.85 and 3,909.23 is: 5,863.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,769.93 : 20,654.85 = 3,909.23 : x
  2. Step 2: Convert to fraction form
    13,769.93/20,654.85 = 3,909.23/x
  3. Step 3: Cross multiply
    13,769.93x = 20,654.85 × 3,909.23
  4. Step 4: Simplify right side
    13,769.93x = 80,744,455.99
  5. Step 5: Solve for x
    x = 80,744,455.99/13,769.93
  6. Step 6: Final answer
    x = 5,863.83

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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.