Home / 12,183.12-16,725.78-10,997.28

Finding the Fourth Proportional to 12,183.12, 16,725.78 and 10,997.28

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Solution

The fourth proportional to 12,183.12, 16,725.78 and 10,997.28 is: 15,097.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,183.12 : 16,725.78 = 10,997.28 : x
  2. Step 2: Convert to fraction form
    12,183.12/16,725.78 = 10,997.28/x
  3. Step 3: Cross multiply
    12,183.12x = 16,725.78 × 10,997.28
  4. Step 4: Simplify right side
    12,183.12x = 183,938,085.88
  5. Step 5: Solve for x
    x = 183,938,085.88/12,183.12
  6. Step 6: Final answer
    x = 15,097.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.