Home / 11,775.08-16,249.41-6,469.89

Finding the Fourth Proportional to 11,775.08, 16,249.41 and 6,469.89

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Solution

The fourth proportional to 11,775.08, 16,249.41 and 6,469.89 is: 8,928.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,775.08 : 16,249.41 = 6,469.89 : x
  2. Step 2: Convert to fraction form
    11,775.08/16,249.41 = 6,469.89/x
  3. Step 3: Cross multiply
    11,775.08x = 16,249.41 × 6,469.89
  4. Step 4: Simplify right side
    11,775.08x = 105,131,895.26
  5. Step 5: Solve for x
    x = 105,131,895.26/11,775.08
  6. Step 6: Final answer
    x = 8,928.34

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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.