Home / 13,136.35-19,693.43-6,112.74

Finding the Fourth Proportional to 13,136.35, 19,693.43 and 6,112.74

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Solution

The fourth proportional to 13,136.35, 19,693.43 and 6,112.74 is: 9,163.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,136.35 : 19,693.43 = 6,112.74 : x
  2. Step 2: Convert to fraction form
    13,136.35/19,693.43 = 6,112.74/x
  3. Step 3: Cross multiply
    13,136.35x = 19,693.43 × 6,112.74
  4. Step 4: Simplify right side
    13,136.35x = 120,380,817.30
  5. Step 5: Solve for x
    x = 120,380,817.30/13,136.35
  6. Step 6: Final answer
    x = 9,163.95

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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.