Home / 8,025.75-11,078.91-5,239.35

Finding the Fourth Proportional to 8,025.75, 11,078.91 and 5,239.35

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Solution

The fourth proportional to 8,025.75, 11,078.91 and 5,239.35 is: 7,232.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,025.75 : 11,078.91 = 5,239.35 : x
  2. Step 2: Convert to fraction form
    8,025.75/11,078.91 = 5,239.35/x
  3. Step 3: Cross multiply
    8,025.75x = 11,078.91 × 5,239.35
  4. Step 4: Simplify right side
    8,025.75x = 58,046,287.11
  5. Step 5: Solve for x
    x = 58,046,287.11/8,025.75
  6. Step 6: Final answer
    x = 7,232.51

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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.