Home / 18,619.24-25,694.76-10,121.44

Finding the Fourth Proportional to 18,619.24, 25,694.76 and 10,121.44

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Solution

The fourth proportional to 18,619.24, 25,694.76 and 10,121.44 is: 13,967.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,619.24 : 25,694.76 = 10,121.44 : x
  2. Step 2: Convert to fraction form
    18,619.24/25,694.76 = 10,121.44/x
  3. Step 3: Cross multiply
    18,619.24x = 25,694.76 × 10,121.44
  4. Step 4: Simplify right side
    18,619.24x = 260,067,971.65
  5. Step 5: Solve for x
    x = 260,067,971.65/18,619.24
  6. Step 6: Final answer
    x = 13,967.70

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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.