Home / 13,166.97-18,170.10-7,198.50

Finding the Fourth Proportional to 13,166.97, 18,170.10 and 7,198.50

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Solution

The fourth proportional to 13,166.97, 18,170.10 and 7,198.50 is: 9,933.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,166.97 : 18,170.10 = 7,198.50 : x
  2. Step 2: Convert to fraction form
    13,166.97/18,170.10 = 7,198.50/x
  3. Step 3: Cross multiply
    13,166.97x = 18,170.10 × 7,198.50
  4. Step 4: Simplify right side
    13,166.97x = 130,797,464.85
  5. Step 5: Solve for x
    x = 130,797,464.85/13,166.97
  6. Step 6: Final answer
    x = 9,933.76

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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.