Home / 13,906.15-19,190.52-7,618.52

Finding the Fourth Proportional to 13,906.15, 19,190.52 and 7,618.52

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Solution

The fourth proportional to 13,906.15, 19,190.52 and 7,618.52 is: 10,513.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,906.15 : 19,190.52 = 7,618.52 : x
  2. Step 2: Convert to fraction form
    13,906.15/19,190.52 = 7,618.52/x
  3. Step 3: Cross multiply
    13,906.15x = 19,190.52 × 7,618.52
  4. Step 4: Simplify right side
    13,906.15x = 146,203,408.41
  5. Step 5: Solve for x
    x = 146,203,408.41/13,906.15
  6. Step 6: Final answer
    x = 10,513.58

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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.