Home / 12,183.12-18,283.32-5,253.84

Finding the Fourth Proportional to 12,183.12, 18,283.32 and 5,253.84

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Solution

The fourth proportional to 12,183.12, 18,283.32 and 5,253.84 is: 7,884.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,183.12 : 18,283.32 = 5,253.84 : x
  2. Step 2: Convert to fraction form
    12,183.12/18,283.32 = 5,253.84/x
  3. Step 3: Cross multiply
    12,183.12x = 18,283.32 × 5,253.84
  4. Step 4: Simplify right side
    12,183.12x = 96,057,637.95
  5. Step 5: Solve for x
    x = 96,057,637.95/12,183.12
  6. Step 6: Final answer
    x = 7,884.49

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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.