Home / 9,163.74-13,745.58-3,318.99

Finding the Fourth Proportional to 9,163.74, 13,745.58 and 3,318.99

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Solution

The fourth proportional to 9,163.74, 13,745.58 and 3,318.99 is: 4,978.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,163.74 : 13,745.58 = 3,318.99 : x
  2. Step 2: Convert to fraction form
    9,163.74/13,745.58 = 3,318.99/x
  3. Step 3: Cross multiply
    9,163.74x = 13,745.58 × 3,318.99
  4. Step 4: Simplify right side
    9,163.74x = 45,621,442.56
  5. Step 5: Solve for x
    x = 45,621,442.56/9,163.74
  6. Step 6: Final answer
    x = 4,978.47

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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.