Home / 13,173.82-19,761.77-3,813.99

Finding the Fourth Proportional to 13,173.82, 19,761.77 and 3,813.99

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Solution

The fourth proportional to 13,173.82, 19,761.77 and 3,813.99 is: 5,721.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,173.82 : 19,761.77 = 3,813.99 : x
  2. Step 2: Convert to fraction form
    13,173.82/19,761.77 = 3,813.99/x
  3. Step 3: Cross multiply
    13,173.82x = 19,761.77 × 3,813.99
  4. Step 4: Simplify right side
    13,173.82x = 75,371,114.29
  5. Step 5: Solve for x
    x = 75,371,114.29/13,173.82
  6. Step 6: Final answer
    x = 5,721.28

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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.