Home / 8,744.20-12,067.32-5,207.80

Finding the Fourth Proportional to 8,744.20, 12,067.32 and 5,207.80

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Solution

The fourth proportional to 8,744.20, 12,067.32 and 5,207.80 is: 7,186.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,744.20 : 12,067.32 = 5,207.80 : x
  2. Step 2: Convert to fraction form
    8,744.20/12,067.32 = 5,207.80/x
  3. Step 3: Cross multiply
    8,744.20x = 12,067.32 × 5,207.80
  4. Step 4: Simplify right side
    8,744.20x = 62,844,189.10
  5. Step 5: Solve for x
    x = 62,844,189.10/8,744.20
  6. Step 6: Final answer
    x = 7,186.96

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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.