Home / 13,866.52-19,135.82-7,578.88

Finding the Fourth Proportional to 13,866.52, 19,135.82 and 7,578.88

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Solution

The fourth proportional to 13,866.52, 19,135.82 and 7,578.88 is: 10,458.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,866.52 : 19,135.82 = 7,578.88 : x
  2. Step 2: Convert to fraction form
    13,866.52/19,135.82 = 7,578.88/x
  3. Step 3: Cross multiply
    13,866.52x = 19,135.82 × 7,578.88
  4. Step 4: Simplify right side
    13,866.52x = 145,028,083.48
  5. Step 5: Solve for x
    x = 145,028,083.48/13,866.52
  6. Step 6: Final answer
    x = 10,458.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.