Home / 15,183.35-20,947.37-8,806.37

Finding the Fourth Proportional to 15,183.35, 20,947.37 and 8,806.37

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Solution

The fourth proportional to 15,183.35, 20,947.37 and 8,806.37 is: 12,149.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,183.35 : 20,947.37 = 8,806.37 : x
  2. Step 2: Convert to fraction form
    15,183.35/20,947.37 = 8,806.37/x
  3. Step 3: Cross multiply
    15,183.35x = 20,947.37 × 8,806.37
  4. Step 4: Simplify right side
    15,183.35x = 184,470,208.03
  5. Step 5: Solve for x
    x = 184,470,208.03/15,183.35
  6. Step 6: Final answer
    x = 12,149.51

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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.