Home / 13,175.94-18,183.08-7,208.00

Finding the Fourth Proportional to 13,175.94, 18,183.08 and 7,208.00

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Solution

The fourth proportional to 13,175.94, 18,183.08 and 7,208.00 is: 9,947.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,175.94 : 18,183.08 = 7,208.00 : x
  2. Step 2: Convert to fraction form
    13,175.94/18,183.08 = 7,208.00/x
  3. Step 3: Cross multiply
    13,175.94x = 18,183.08 × 7,208.00
  4. Step 4: Simplify right side
    13,175.94x = 131,063,513.68
  5. Step 5: Solve for x
    x = 131,063,513.68/13,175.94
  6. Step 6: Final answer
    x = 9,947.19

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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.