Home / 13,677.96-20,520.40-3,817.23

Finding the Fourth Proportional to 13,677.96, 20,520.40 and 3,817.23

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Solution

The fourth proportional to 13,677.96, 20,520.40 and 3,817.23 is: 5,726.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,677.96 : 20,520.40 = 3,817.23 : x
  2. Step 2: Convert to fraction form
    13,677.96/20,520.40 = 3,817.23/x
  3. Step 3: Cross multiply
    13,677.96x = 20,520.40 × 3,817.23
  4. Step 4: Simplify right side
    13,677.96x = 78,331,086.49
  5. Step 5: Solve for x
    x = 78,331,086.49/13,677.96
  6. Step 6: Final answer
    x = 5,726.81

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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.