Home / 13,163.81-18,166.31-7,195.73

Finding the Fourth Proportional to 13,163.81, 18,166.31 and 7,195.73

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Solution

The fourth proportional to 13,163.81, 18,166.31 and 7,195.73 is: 9,930.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,163.81 : 18,166.31 = 7,195.73 : x
  2. Step 2: Convert to fraction form
    13,163.81/18,166.31 = 7,195.73/x
  3. Step 3: Cross multiply
    13,163.81x = 18,166.31 × 7,195.73
  4. Step 4: Simplify right side
    13,163.81x = 130,719,789.01
  5. Step 5: Solve for x
    x = 130,719,789.01/13,163.81
  6. Step 6: Final answer
    x = 9,930.24

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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.