Home / 8,287.20-11,440.57-6,394.54

Finding the Fourth Proportional to 8,287.20, 11,440.57 and 6,394.54

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Solution

The fourth proportional to 8,287.20, 11,440.57 and 6,394.54 is: 8,827.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,287.20 : 11,440.57 = 6,394.54 : x
  2. Step 2: Convert to fraction form
    8,287.20/11,440.57 = 6,394.54/x
  3. Step 3: Cross multiply
    8,287.20x = 11,440.57 × 6,394.54
  4. Step 4: Simplify right side
    8,287.20x = 73,157,125.28
  5. Step 5: Solve for x
    x = 73,157,125.28/8,287.20
  6. Step 6: Final answer
    x = 8,827.73

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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.