Home / 19,747.76-27,249.27-12,683.75

Finding the Fourth Proportional to 19,747.76, 27,249.27 and 12,683.75

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Solution

The fourth proportional to 19,747.76, 27,249.27 and 12,683.75 is: 17,501.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,747.76 : 27,249.27 = 12,683.75 : x
  2. Step 2: Convert to fraction form
    19,747.76/27,249.27 = 12,683.75/x
  3. Step 3: Cross multiply
    19,747.76x = 27,249.27 × 12,683.75
  4. Step 4: Simplify right side
    19,747.76x = 345,622,792.12
  5. Step 5: Solve for x
    x = 345,622,792.12/19,747.76
  6. Step 6: Final answer
    x = 17,501.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.