Home / 8,255.79-12,383.56-3,325.32

Finding the Fourth Proportional to 8,255.79, 12,383.56 and 3,325.32

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Solution

The fourth proportional to 8,255.79, 12,383.56 and 3,325.32 is: 4,987.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,255.79 : 12,383.56 = 3,325.32 : x
  2. Step 2: Convert to fraction form
    8,255.79/12,383.56 = 3,325.32/x
  3. Step 3: Cross multiply
    8,255.79x = 12,383.56 × 3,325.32
  4. Step 4: Simplify right side
    8,255.79x = 41,179,299.74
  5. Step 5: Solve for x
    x = 41,179,299.74/8,255.79
  6. Step 6: Final answer
    x = 4,987.93

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1.5x scale

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.