Home / 8,135.28-12,200.36-2,662

Finding the Fourth Proportional to 8,135.28, 12,200.36 and 2,662

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Solution

The fourth proportional to 8,135.28, 12,200.36 and 2,662 is: 3,992.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,135.28 : 12,200.36 = 2,662 : x
  2. Step 2: Convert to fraction form
    8,135.28/12,200.36 = 2,662/x
  3. Step 3: Cross multiply
    8,135.28x = 12,200.36 × 2,662
  4. Step 4: Simplify right side
    8,135.28x = 32,477,358.32
  5. Step 5: Solve for x
    x = 32,477,358.32/8,135.28
  6. Step 6: Final answer
    x = 3,992.16

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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.