Home / 13,257.75-19,882.40-4,371.43

Finding the Fourth Proportional to 13,257.75, 19,882.40 and 4,371.43

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Solution

The fourth proportional to 13,257.75, 19,882.40 and 4,371.43 is: 6,555.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,257.75 : 19,882.40 = 4,371.43 : x
  2. Step 2: Convert to fraction form
    13,257.75/19,882.40 = 4,371.43/x
  3. Step 3: Cross multiply
    13,257.75x = 19,882.40 × 4,371.43
  4. Step 4: Simplify right side
    13,257.75x = 86,914,519.83
  5. Step 5: Solve for x
    x = 86,914,519.83/13,257.75
  6. Step 6: Final answer
    x = 6,555.75

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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.