Home / 13,198.55-18,213.46-7,896.29

Finding the Fourth Proportional to 13,198.55, 18,213.46 and 7,896.29

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Solution

The fourth proportional to 13,198.55, 18,213.46 and 7,896.29 is: 10,896.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,198.55 : 18,213.46 = 7,896.29 : x
  2. Step 2: Convert to fraction form
    13,198.55/18,213.46 = 7,896.29/x
  3. Step 3: Cross multiply
    13,198.55x = 18,213.46 × 7,896.29
  4. Step 4: Simplify right side
    13,198.55x = 143,818,651.26
  5. Step 5: Solve for x
    x = 143,818,651.26/13,198.55
  6. Step 6: Final answer
    x = 10,896.55

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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.