Home / 8,722.72-13,058.16-5,249.44

Finding the Fourth Proportional to 8,722.72, 13,058.16 and 5,249.44

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Solution

The fourth proportional to 8,722.72, 13,058.16 and 5,249.44 is: 7,858.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,722.72 : 13,058.16 = 5,249.44 : x
  2. Step 2: Convert to fraction form
    8,722.72/13,058.16 = 5,249.44/x
  3. Step 3: Cross multiply
    8,722.72x = 13,058.16 × 5,249.44
  4. Step 4: Simplify right side
    8,722.72x = 68,548,027.43
  5. Step 5: Solve for x
    x = 68,548,027.43/8,722.72
  6. Step 6: Final answer
    x = 7,858.56

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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.