Home / 13,176.20-18,183.57-7,208.03

Finding the Fourth Proportional to 13,176.20, 18,183.57 and 7,208.03

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Solution

The fourth proportional to 13,176.20, 18,183.57 and 7,208.03 is: 9,947.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,176.20 : 18,183.57 = 7,208.03 : x
  2. Step 2: Convert to fraction form
    13,176.20/18,183.57 = 7,208.03/x
  3. Step 3: Cross multiply
    13,176.20x = 18,183.57 × 7,208.03
  4. Step 4: Simplify right side
    13,176.20x = 131,067,718.07
  5. Step 5: Solve for x
    x = 131,067,718.07/13,176.20
  6. Step 6: Final answer
    x = 9,947.31

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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.