Home / 13,581.62-20,344.70-6,993.98

Finding the Fourth Proportional to 13,581.62, 20,344.70 and 6,993.98

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Solution

The fourth proportional to 13,581.62, 20,344.70 and 6,993.98 is: 10,476.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,581.62 : 20,344.70 = 6,993.98 : x
  2. Step 2: Convert to fraction form
    13,581.62/20,344.70 = 6,993.98/x
  3. Step 3: Cross multiply
    13,581.62x = 20,344.70 × 6,993.98
  4. Step 4: Simplify right side
    13,581.62x = 142,290,424.91
  5. Step 5: Solve for x
    x = 142,290,424.91/13,581.62
  6. Step 6: Final answer
    x = 10,476.69

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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.