Home / 12,183.76-18,282.93-11,192.32

Finding the Fourth Proportional to 12,183.76, 18,282.93 and 11,192.32

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Solution

The fourth proportional to 12,183.76, 18,282.93 and 11,192.32 is: 16,795.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,183.76 : 18,282.93 = 11,192.32 : x
  2. Step 2: Convert to fraction form
    12,183.76/18,282.93 = 11,192.32/x
  3. Step 3: Cross multiply
    12,183.76x = 18,282.93 × 11,192.32
  4. Step 4: Simplify right side
    12,183.76x = 204,628,403.10
  5. Step 5: Solve for x
    x = 204,628,403.10/12,183.76
  6. Step 6: Final answer
    x = 16,795.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.