Home / 18,376.75-25,359.92-9,993.25

Finding the Fourth Proportional to 18,376.75, 25,359.92 and 9,993.25

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Solution

The fourth proportional to 18,376.75, 25,359.92 and 9,993.25 is: 13,790.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,376.75 : 25,359.92 = 9,993.25 : x
  2. Step 2: Convert to fraction form
    18,376.75/25,359.92 = 9,993.25/x
  3. Step 3: Cross multiply
    18,376.75x = 25,359.92 × 9,993.25
  4. Step 4: Simplify right side
    18,376.75x = 253,428,020.54
  5. Step 5: Solve for x
    x = 253,428,020.54/18,376.75
  6. Step 6: Final answer
    x = 13,790.69

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Half scale
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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.