Home / 13,183.83-18,185.29-9,203.49

Finding the Fourth Proportional to 13,183.83, 18,185.29 and 9,203.49

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Solution

The fourth proportional to 13,183.83, 18,185.29 and 9,203.49 is: 12,694.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,183.83 : 18,185.29 = 9,203.49 : x
  2. Step 2: Convert to fraction form
    13,183.83/18,185.29 = 9,203.49/x
  3. Step 3: Cross multiply
    13,183.83x = 18,185.29 × 9,203.49
  4. Step 4: Simplify right side
    13,183.83x = 167,368,111.65
  5. Step 5: Solve for x
    x = 167,368,111.65/13,183.83
  6. Step 6: Final answer
    x = 12,694.95

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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.