Home / 13,163.82-18,166.32-7,195.32

Finding the Fourth Proportional to 13,163.82, 18,166.32 and 7,195.32

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Solution

The fourth proportional to 13,163.82, 18,166.32 and 7,195.32 is: 9,929.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,163.82 : 18,166.32 = 7,195.32 : x
  2. Step 2: Convert to fraction form
    13,163.82/18,166.32 = 7,195.32/x
  3. Step 3: Cross multiply
    13,163.82x = 18,166.32 × 7,195.32
  4. Step 4: Simplify right side
    13,163.82x = 130,712,485.62
  5. Step 5: Solve for x
    x = 130,712,485.62/13,163.82
  6. Step 6: Final answer
    x = 9,929.68

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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.