Home / 19,116.06-28,653.39-8,028.78

Finding the Fourth Proportional to 19,116.06, 28,653.39 and 8,028.78

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Solution

The fourth proportional to 19,116.06, 28,653.39 and 8,028.78 is: 12,034.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,116.06 : 28,653.39 = 8,028.78 : x
  2. Step 2: Convert to fraction form
    19,116.06/28,653.39 = 8,028.78/x
  3. Step 3: Cross multiply
    19,116.06x = 28,653.39 × 8,028.78
  4. Step 4: Simplify right side
    19,116.06x = 230,051,764.56
  5. Step 5: Solve for x
    x = 230,051,764.56/19,116.06
  6. Step 6: Final answer
    x = 12,034.48

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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.