Home / 13,309.82-19,966.54-4,542.38

Finding the Fourth Proportional to 13,309.82, 19,966.54 and 4,542.38

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Solution

The fourth proportional to 13,309.82, 19,966.54 and 4,542.38 is: 6,814.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,309.82 : 19,966.54 = 4,542.38 : x
  2. Step 2: Convert to fraction form
    13,309.82/19,966.54 = 4,542.38/x
  3. Step 3: Cross multiply
    13,309.82x = 19,966.54 × 4,542.38
  4. Step 4: Simplify right side
    13,309.82x = 90,695,611.97
  5. Step 5: Solve for x
    x = 90,695,611.97/13,309.82
  6. Step 6: Final answer
    x = 6,814.19

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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.