Home / 19,144.49-28,720.18-7,893.57

Finding the Fourth Proportional to 19,144.49, 28,720.18 and 7,893.57

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Solution

The fourth proportional to 19,144.49, 28,720.18 and 7,893.57 is: 11,841.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,144.49 : 28,720.18 = 7,893.57 : x
  2. Step 2: Convert to fraction form
    19,144.49/28,720.18 = 7,893.57/x
  3. Step 3: Cross multiply
    19,144.49x = 28,720.18 × 7,893.57
  4. Step 4: Simplify right side
    19,144.49x = 226,704,751.24
  5. Step 5: Solve for x
    x = 226,704,751.24/19,144.49
  6. Step 6: Final answer
    x = 11,841.78

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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.