Home / 13,669.80-20,503.50-3,808.44

Finding the Fourth Proportional to 13,669.80, 20,503.50 and 3,808.44

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Solution

The fourth proportional to 13,669.80, 20,503.50 and 3,808.44 is: 5,712.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,669.80 : 20,503.50 = 3,808.44 : x
  2. Step 2: Convert to fraction form
    13,669.80/20,503.50 = 3,808.44/x
  3. Step 3: Cross multiply
    13,669.80x = 20,503.50 × 3,808.44
  4. Step 4: Simplify right side
    13,669.80x = 78,086,349.54
  5. Step 5: Solve for x
    x = 78,086,349.54/13,669.80
  6. Step 6: Final answer
    x = 5,712.33

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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.