Home / 8,747.35-13,120.92-5,238.33

Finding the Fourth Proportional to 8,747.35, 13,120.92 and 5,238.33

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Solution

The fourth proportional to 8,747.35, 13,120.92 and 5,238.33 is: 7,857.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,747.35 : 13,120.92 = 5,238.33 : x
  2. Step 2: Convert to fraction form
    8,747.35/13,120.92 = 5,238.33/x
  3. Step 3: Cross multiply
    8,747.35x = 13,120.92 × 5,238.33
  4. Step 4: Simplify right side
    8,747.35x = 68,731,708.86
  5. Step 5: Solve for x
    x = 68,731,708.86/8,747.35
  6. Step 6: Final answer
    x = 7,857.43

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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.