Home / 13,365.33-20,028.78-5,859.82

Finding the Fourth Proportional to 13,365.33, 20,028.78 and 5,859.82

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Solution

The fourth proportional to 13,365.33, 20,028.78 and 5,859.82 is: 8,781.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,365.33 : 20,028.78 = 5,859.82 : x
  2. Step 2: Convert to fraction form
    13,365.33/20,028.78 = 5,859.82/x
  3. Step 3: Cross multiply
    13,365.33x = 20,028.78 × 5,859.82
  4. Step 4: Simplify right side
    13,365.33x = 117,365,045.62
  5. Step 5: Solve for x
    x = 117,365,045.62/13,365.33
  6. Step 6: Final answer
    x = 8,781.31

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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.