Home / 8,255.00-11,390.87-5,272.58

Finding the Fourth Proportional to 8,255.00, 11,390.87 and 5,272.58

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Solution

The fourth proportional to 8,255.00, 11,390.87 and 5,272.58 is: 7,275.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,255.00 : 11,390.87 = 5,272.58 : x
  2. Step 2: Convert to fraction form
    8,255.00/11,390.87 = 5,272.58/x
  3. Step 3: Cross multiply
    8,255.00x = 11,390.87 × 5,272.58
  4. Step 4: Simplify right side
    8,255.00x = 60,059,190.03
  5. Step 5: Solve for x
    x = 60,059,190.03/8,255.00
  6. Step 6: Final answer
    x = 7,275.50

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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.