Home / 9,618.06-13,243.31-8,198.56

Finding the Fourth Proportional to 9,618.06, 13,243.31 and 8,198.56

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Solution

The fourth proportional to 9,618.06, 13,243.31 and 8,198.56 is: 11,288.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,618.06 : 13,243.31 = 8,198.56 : x
  2. Step 2: Convert to fraction form
    9,618.06/13,243.31 = 8,198.56/x
  3. Step 3: Cross multiply
    9,618.06x = 13,243.31 × 8,198.56
  4. Step 4: Simplify right side
    9,618.06x = 108,576,038.53
  5. Step 5: Solve for x
    x = 108,576,038.53/9,618.06
  6. Step 6: Final answer
    x = 11,288.77

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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.