Home / 13,669.53-20,503.68-3,808.59

Finding the Fourth Proportional to 13,669.53, 20,503.68 and 3,808.59

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Solution

The fourth proportional to 13,669.53, 20,503.68 and 3,808.59 is: 5,712.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,669.53 : 20,503.68 = 3,808.59 : x
  2. Step 2: Convert to fraction form
    13,669.53/20,503.68 = 3,808.59/x
  3. Step 3: Cross multiply
    13,669.53x = 20,503.68 × 3,808.59
  4. Step 4: Simplify right side
    13,669.53x = 78,090,110.61
  5. Step 5: Solve for x
    x = 78,090,110.61/13,669.53
  6. Step 6: Final answer
    x = 5,712.71

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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.