Home / 13,564.97-20,356.11-5,773.78

Finding the Fourth Proportional to 13,564.97, 20,356.11 and 5,773.78

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Solution

The fourth proportional to 13,564.97, 20,356.11 and 5,773.78 is: 8,664.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,564.97 : 20,356.11 = 5,773.78 : x
  2. Step 2: Convert to fraction form
    13,564.97/20,356.11 = 5,773.78/x
  3. Step 3: Cross multiply
    13,564.97x = 20,356.11 × 5,773.78
  4. Step 4: Simplify right side
    13,564.97x = 117,531,726.24
  5. Step 5: Solve for x
    x = 117,531,726.24/13,564.97
  6. Step 6: Final answer
    x = 8,664.36

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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.