Home / 19,222.72-28,837.96-8,129.44

Finding the Fourth Proportional to 19,222.72, 28,837.96 and 8,129.44

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Solution

The fourth proportional to 19,222.72, 28,837.96 and 8,129.44 is: 12,195.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,222.72 : 28,837.96 = 8,129.44 : x
  2. Step 2: Convert to fraction form
    19,222.72/28,837.96 = 8,129.44/x
  3. Step 3: Cross multiply
    19,222.72x = 28,837.96 × 8,129.44
  4. Step 4: Simplify right side
    19,222.72x = 234,436,465.54
  5. Step 5: Solve for x
    x = 234,436,465.54/19,222.72
  6. Step 6: Final answer
    x = 12,195.80

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1.5x scale

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.