Home / 9,163.88-13,745.81-3,320.48

Finding the Fourth Proportional to 9,163.88, 13,745.81 and 3,320.48

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Solution

The fourth proportional to 9,163.88, 13,745.81 and 3,320.48 is: 4,980.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,163.88 : 13,745.81 = 3,320.48 : x
  2. Step 2: Convert to fraction form
    9,163.88/13,745.81 = 3,320.48/x
  3. Step 3: Cross multiply
    9,163.88x = 13,745.81 × 3,320.48
  4. Step 4: Simplify right side
    9,163.88x = 45,642,729.85
  5. Step 5: Solve for x
    x = 45,642,729.85/9,163.88
  6. Step 6: Final answer
    x = 4,980.72

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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.