Home / 19,040.09-28,578.58-9,186.28

Finding the Fourth Proportional to 19,040.09, 28,578.58 and 9,186.28

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Solution

The fourth proportional to 19,040.09, 28,578.58 and 9,186.28 is: 13,788.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,040.09 : 28,578.58 = 9,186.28 : x
  2. Step 2: Convert to fraction form
    19,040.09/28,578.58 = 9,186.28/x
  3. Step 3: Cross multiply
    19,040.09x = 28,578.58 × 9,186.28
  4. Step 4: Simplify right side
    19,040.09x = 262,530,743.47
  5. Step 5: Solve for x
    x = 262,530,743.47/19,040.09
  6. Step 6: Final answer
    x = 13,788.32

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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.