Home / 13,198.44-18,213.76-7,230.06

Finding the Fourth Proportional to 13,198.44, 18,213.76 and 7,230.06

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Solution

The fourth proportional to 13,198.44, 18,213.76 and 7,230.06 is: 9,977.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,198.44 : 18,213.76 = 7,230.06 : x
  2. Step 2: Convert to fraction form
    13,198.44/18,213.76 = 7,230.06/x
  3. Step 3: Cross multiply
    13,198.44x = 18,213.76 × 7,230.06
  4. Step 4: Simplify right side
    13,198.44x = 131,686,586.66
  5. Step 5: Solve for x
    x = 131,686,586.66/13,198.44
  6. Step 6: Final answer
    x = 9,977.43

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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.