Home / 13,778.76-20,654.99-4,412.73

Finding the Fourth Proportional to 13,778.76, 20,654.99 and 4,412.73

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Solution

The fourth proportional to 13,778.76, 20,654.99 and 4,412.73 is: 6,614.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,778.76 : 20,654.99 = 4,412.73 : x
  2. Step 2: Convert to fraction form
    13,778.76/20,654.99 = 4,412.73/x
  3. Step 3: Cross multiply
    13,778.76x = 20,654.99 × 4,412.73
  4. Step 4: Simplify right side
    13,778.76x = 91,144,871.96
  5. Step 5: Solve for x
    x = 91,144,871.96/13,778.76
  6. Step 6: Final answer
    x = 6,614.88

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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.