Home / 11,286.08-16,932-7,155.44

Finding the Fourth Proportional to 11,286.08, 16,932 and 7,155.44

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Solution

The fourth proportional to 11,286.08, 16,932 and 7,155.44 is: 10,734.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,286.08 : 16,932 = 7,155.44 : x
  2. Step 2: Convert to fraction form
    11,286.08/16,932 = 7,155.44/x
  3. Step 3: Cross multiply
    11,286.08x = 16,932 × 7,155.44
  4. Step 4: Simplify right side
    11,286.08x = 121,155,910.08
  5. Step 5: Solve for x
    x = 121,155,910.08/11,286.08
  6. Step 6: Final answer
    x = 10,734.99

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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.