Home / 13,581.98-20,375.70-4,817.58

Finding the Fourth Proportional to 13,581.98, 20,375.70 and 4,817.58

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Solution

The fourth proportional to 13,581.98, 20,375.70 and 4,817.58 is: 7,227.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,581.98 : 20,375.70 = 4,817.58 : x
  2. Step 2: Convert to fraction form
    13,581.98/20,375.70 = 4,817.58/x
  3. Step 3: Cross multiply
    13,581.98x = 20,375.70 × 4,817.58
  4. Step 4: Simplify right side
    13,581.98x = 98,161,497.43
  5. Step 5: Solve for x
    x = 98,161,497.43/13,581.98
  6. Step 6: Final answer
    x = 7,227.33

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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.