Home / 13,906.92-19,190.98-7,619.56

Finding the Fourth Proportional to 13,906.92, 19,190.98 and 7,619.56

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Solution

The fourth proportional to 13,906.92, 19,190.98 and 7,619.56 is: 10,514.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,906.92 : 19,190.98 = 7,619.56 : x
  2. Step 2: Convert to fraction form
    13,906.92/19,190.98 = 7,619.56/x
  3. Step 3: Cross multiply
    13,906.92x = 19,190.98 × 7,619.56
  4. Step 4: Simplify right side
    13,906.92x = 146,226,823.57
  5. Step 5: Solve for x
    x = 146,226,823.57/13,906.92
  6. Step 6: Final answer
    x = 10,514.68

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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.