Home / 13,176.48-18,183.97-7,208.15

Finding the Fourth Proportional to 13,176.48, 18,183.97 and 7,208.15

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Solution

The fourth proportional to 13,176.48, 18,183.97 and 7,208.15 is: 9,947.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,176.48 : 18,183.97 = 7,208.15 : x
  2. Step 2: Convert to fraction form
    13,176.48/18,183.97 = 7,208.15/x
  3. Step 3: Cross multiply
    13,176.48x = 18,183.97 × 7,208.15
  4. Step 4: Simplify right side
    13,176.48x = 131,072,732.32
  5. Step 5: Solve for x
    x = 131,072,732.32/13,176.48
  6. Step 6: Final answer
    x = 9,947.48

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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.