Home / 11,775.08-16,249.38-6,469.76

Finding the Fourth Proportional to 11,775.08, 16,249.38 and 6,469.76

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Solution

The fourth proportional to 11,775.08, 16,249.38 and 6,469.76 is: 8,928.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,775.08 : 16,249.38 = 6,469.76 : x
  2. Step 2: Convert to fraction form
    11,775.08/16,249.38 = 6,469.76/x
  3. Step 3: Cross multiply
    11,775.08x = 16,249.38 × 6,469.76
  4. Step 4: Simplify right side
    11,775.08x = 105,129,588.75
  5. Step 5: Solve for x
    x = 105,129,588.75/11,775.08
  6. Step 6: Final answer
    x = 8,928.14

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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.