Home / 9,329.38-12,875.36-5,745.13

Finding the Fourth Proportional to 9,329.38, 12,875.36 and 5,745.13

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Solution

The fourth proportional to 9,329.38, 12,875.36 and 5,745.13 is: 7,928.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,329.38 : 12,875.36 = 5,745.13 : x
  2. Step 2: Convert to fraction form
    9,329.38/12,875.36 = 5,745.13/x
  3. Step 3: Cross multiply
    9,329.38x = 12,875.36 × 5,745.13
  4. Step 4: Simplify right side
    9,329.38x = 73,970,556.08
  5. Step 5: Solve for x
    x = 73,970,556.08/9,329.38
  6. Step 6: Final answer
    x = 7,928.78

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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.