Home / 9,378.82-14,069.67-3,136.90

Finding the Fourth Proportional to 9,378.82, 14,069.67 and 3,136.90

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Solution

The fourth proportional to 9,378.82, 14,069.67 and 3,136.90 is: 4,705.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,378.82 : 14,069.67 = 3,136.90 : x
  2. Step 2: Convert to fraction form
    9,378.82/14,069.67 = 3,136.90/x
  3. Step 3: Cross multiply
    9,378.82x = 14,069.67 × 3,136.90
  4. Step 4: Simplify right side
    9,378.82x = 44,135,147.82
  5. Step 5: Solve for x
    x = 44,135,147.82/9,378.82
  6. Step 6: Final answer
    x = 4,705.83

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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.