Home / 11,589.87-17,392.73-6,399.39

Finding the Fourth Proportional to 11,589.87, 17,392.73 and 6,399.39

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Solution

The fourth proportional to 11,589.87, 17,392.73 and 6,399.39 is: 9,603.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,589.87 : 17,392.73 = 6,399.39 : x
  2. Step 2: Convert to fraction form
    11,589.87/17,392.73 = 6,399.39/x
  3. Step 3: Cross multiply
    11,589.87x = 17,392.73 × 6,399.39
  4. Step 4: Simplify right side
    11,589.87x = 111,302,830.44
  5. Step 5: Solve for x
    x = 111,302,830.44/11,589.87
  6. Step 6: Final answer
    x = 9,603.46

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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.