Home / 8,086.32-12,135.60-3,645.36

Finding the Fourth Proportional to 8,086.32, 12,135.60 and 3,645.36

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Solution

The fourth proportional to 8,086.32, 12,135.60 and 3,645.36 is: 5,470.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,086.32 : 12,135.60 = 3,645.36 : x
  2. Step 2: Convert to fraction form
    8,086.32/12,135.60 = 3,645.36/x
  3. Step 3: Cross multiply
    8,086.32x = 12,135.60 × 3,645.36
  4. Step 4: Simplify right side
    8,086.32x = 44,238,630.82
  5. Step 5: Solve for x
    x = 44,238,630.82/8,086.32
  6. Step 6: Final answer
    x = 5,470.80

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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.