Home / 12,544.22-18,813.90-11,919.80

Finding the Fourth Proportional to 12,544.22, 18,813.90 and 11,919.80

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Solution

The fourth proportional to 12,544.22, 18,813.90 and 11,919.80 is: 17,877.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,544.22 : 18,813.90 = 11,919.80 : x
  2. Step 2: Convert to fraction form
    12,544.22/18,813.90 = 11,919.80/x
  3. Step 3: Cross multiply
    12,544.22x = 18,813.90 × 11,919.80
  4. Step 4: Simplify right side
    12,544.22x = 224,257,925.22
  5. Step 5: Solve for x
    x = 224,257,925.22/12,544.22
  6. Step 6: Final answer
    x = 17,877.39

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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.