Home / 13,729.82-20,595.55-3,869.94

Finding the Fourth Proportional to 13,729.82, 20,595.55 and 3,869.94

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Solution

The fourth proportional to 13,729.82, 20,595.55 and 3,869.94 is: 5,805.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,729.82 : 20,595.55 = 3,869.94 : x
  2. Step 2: Convert to fraction form
    13,729.82/20,595.55 = 3,869.94/x
  3. Step 3: Cross multiply
    13,729.82x = 20,595.55 × 3,869.94
  4. Step 4: Simplify right side
    13,729.82x = 79,703,542.77
  5. Step 5: Solve for x
    x = 79,703,542.77/13,729.82
  6. Step 6: Final answer
    x = 5,805.14

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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.