Home / 12,136.26-18,194.40-5,473.20

Finding the Fourth Proportional to 12,136.26, 18,194.40 and 5,473.20

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Solution

The fourth proportional to 12,136.26, 18,194.40 and 5,473.20 is: 8,205.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,136.26 : 18,194.40 = 5,473.20 : x
  2. Step 2: Convert to fraction form
    12,136.26/18,194.40 = 5,473.20/x
  3. Step 3: Cross multiply
    12,136.26x = 18,194.40 × 5,473.20
  4. Step 4: Simplify right side
    12,136.26x = 99,581,590.08
  5. Step 5: Solve for x
    x = 99,581,590.08/12,136.26
  6. Step 6: Final answer
    x = 8,205.29

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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.