Home / 13,163.37-18,160.59-8,450.38

Finding the Fourth Proportional to 13,163.37, 18,160.59 and 8,450.38

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Solution

The fourth proportional to 13,163.37, 18,160.59 and 8,450.38 is: 11,658.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,163.37 : 18,160.59 = 8,450.38 : x
  2. Step 2: Convert to fraction form
    13,163.37/18,160.59 = 8,450.38/x
  3. Step 3: Cross multiply
    13,163.37x = 18,160.59 × 8,450.38
  4. Step 4: Simplify right side
    13,163.37x = 153,463,886.52
  5. Step 5: Solve for x
    x = 153,463,886.52/13,163.37
  6. Step 6: Final answer
    x = 11,658.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.