Home / 12,847.38-19,144.05-11,539.20

Finding the Fourth Proportional to 12,847.38, 19,144.05 and 11,539.20

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Solution

The fourth proportional to 12,847.38, 19,144.05 and 11,539.20 is: 17,194.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,847.38 : 19,144.05 = 11,539.20 : x
  2. Step 2: Convert to fraction form
    12,847.38/19,144.05 = 11,539.20/x
  3. Step 3: Cross multiply
    12,847.38x = 19,144.05 × 11,539.20
  4. Step 4: Simplify right side
    12,847.38x = 220,907,021.76
  5. Step 5: Solve for x
    x = 220,907,021.76/12,847.38
  6. Step 6: Final answer
    x = 17,194.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.