Home / 18,274.44-25,218.86-10,720.89

Finding the Fourth Proportional to 18,274.44, 25,218.86 and 10,720.89

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Solution

The fourth proportional to 18,274.44, 25,218.86 and 10,720.89 is: 14,794.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,274.44 : 25,218.86 = 10,720.89 : x
  2. Step 2: Convert to fraction form
    18,274.44/25,218.86 = 10,720.89/x
  3. Step 3: Cross multiply
    18,274.44x = 25,218.86 × 10,720.89
  4. Step 4: Simplify right side
    18,274.44x = 270,368,623.99
  5. Step 5: Solve for x
    x = 270,368,623.99/18,274.44
  6. Step 6: Final answer
    x = 14,794.91

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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.