Home / 10,140.94-15,212.38-2,745.48

Finding the Fourth Proportional to 10,140.94, 15,212.38 and 2,745.48

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Solution

The fourth proportional to 10,140.94, 15,212.38 and 2,745.48 is: 4,118.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,140.94 : 15,212.38 = 2,745.48 : x
  2. Step 2: Convert to fraction form
    10,140.94/15,212.38 = 2,745.48/x
  3. Step 3: Cross multiply
    10,140.94x = 15,212.38 × 2,745.48
  4. Step 4: Simplify right side
    10,140.94x = 41,765,285.04
  5. Step 5: Solve for x
    x = 41,765,285.04/10,140.94
  6. Step 6: Final answer
    x = 4,118.48

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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.