Home / 12,531.90-18,797.83-5,136.37

Finding the Fourth Proportional to 12,531.90, 18,797.83 and 5,136.37

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Solution

The fourth proportional to 12,531.90, 18,797.83 and 5,136.37 is: 7,704.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,531.90 : 18,797.83 = 5,136.37 : x
  2. Step 2: Convert to fraction form
    12,531.90/18,797.83 = 5,136.37/x
  3. Step 3: Cross multiply
    12,531.90x = 18,797.83 × 5,136.37
  4. Step 4: Simplify right side
    12,531.90x = 96,552,550.24
  5. Step 5: Solve for x
    x = 96,552,550.24/12,531.90
  6. Step 6: Final answer
    x = 7,704.54

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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.