Home / 19,040.34-28,578.96-9,186.54

Finding the Fourth Proportional to 19,040.34, 28,578.96 and 9,186.54

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Solution

The fourth proportional to 19,040.34, 28,578.96 and 9,186.54 is: 13,788.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,040.34 : 28,578.96 = 9,186.54 : x
  2. Step 2: Convert to fraction form
    19,040.34/28,578.96 = 9,186.54/x
  3. Step 3: Cross multiply
    19,040.34x = 28,578.96 × 9,186.54
  4. Step 4: Simplify right side
    19,040.34x = 262,541,759.20
  5. Step 5: Solve for x
    x = 262,541,759.20/19,040.34
  6. Step 6: Final answer
    x = 13,788.71

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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.