Home / 9,318.88-13,981.34-2,745.10

Finding the Fourth Proportional to 9,318.88, 13,981.34 and 2,745.10

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Solution

The fourth proportional to 9,318.88, 13,981.34 and 2,745.10 is: 4,118.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,318.88 : 13,981.34 = 2,745.10 : x
  2. Step 2: Convert to fraction form
    9,318.88/13,981.34 = 2,745.10/x
  3. Step 3: Cross multiply
    9,318.88x = 13,981.34 × 2,745.10
  4. Step 4: Simplify right side
    9,318.88x = 38,380,176.43
  5. Step 5: Solve for x
    x = 38,380,176.43/9,318.88
  6. Step 6: Final answer
    x = 4,118.54

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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.