Home / 13,213.25-19,813.37-6,542.03

Finding the Fourth Proportional to 13,213.25, 19,813.37 and 6,542.03

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Solution

The fourth proportional to 13,213.25, 19,813.37 and 6,542.03 is: 9,809.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,213.25 : 19,813.37 = 6,542.03 : x
  2. Step 2: Convert to fraction form
    13,213.25/19,813.37 = 6,542.03/x
  3. Step 3: Cross multiply
    13,213.25x = 19,813.37 × 6,542.03
  4. Step 4: Simplify right side
    13,213.25x = 129,619,660.94
  5. Step 5: Solve for x
    x = 129,619,660.94/13,213.25
  6. Step 6: Final answer
    x = 9,809.82

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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.