Home / 18,661.44-25,752.96-10,278.08

Finding the Fourth Proportional to 18,661.44, 25,752.96 and 10,278.08

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Solution

The fourth proportional to 18,661.44, 25,752.96 and 10,278.08 is: 14,183.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,661.44 : 25,752.96 = 10,278.08 : x
  2. Step 2: Convert to fraction form
    18,661.44/25,752.96 = 10,278.08/x
  3. Step 3: Cross multiply
    18,661.44x = 25,752.96 × 10,278.08
  4. Step 4: Simplify right side
    18,661.44x = 264,690,983.12
  5. Step 5: Solve for x
    x = 264,690,983.12/18,661.44
  6. Step 6: Final answer
    x = 14,183.85

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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.