Home / 7,372.80-11,067.36-4,089.12

Finding the Fourth Proportional to 7,372.80, 11,067.36 and 4,089.12

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Solution

The fourth proportional to 7,372.80, 11,067.36 and 4,089.12 is: 6,138.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,372.80 : 11,067.36 = 4,089.12 : x
  2. Step 2: Convert to fraction form
    7,372.80/11,067.36 = 4,089.12/x
  3. Step 3: Cross multiply
    7,372.80x = 11,067.36 × 4,089.12
  4. Step 4: Simplify right side
    7,372.80x = 45,255,763.12
  5. Step 5: Solve for x
    x = 45,255,763.12/7,372.80
  6. Step 6: Final answer
    x = 6,138.21

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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.