Home / 9,311.88-13,963.32-3,388.56

Finding the Fourth Proportional to 9,311.88, 13,963.32 and 3,388.56

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Solution

The fourth proportional to 9,311.88, 13,963.32 and 3,388.56 is: 5,081.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,311.88 : 13,963.32 = 3,388.56 : x
  2. Step 2: Convert to fraction form
    9,311.88/13,963.32 = 3,388.56/x
  3. Step 3: Cross multiply
    9,311.88x = 13,963.32 × 3,388.56
  4. Step 4: Simplify right side
    9,311.88x = 47,315,547.62
  5. Step 5: Solve for x
    x = 47,315,547.62/9,311.88
  6. Step 6: Final answer
    x = 5,081.20

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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.