Home / 19,040.65-28,579.42-9,186.85

Finding the Fourth Proportional to 19,040.65, 28,579.42 and 9,186.85

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Solution

The fourth proportional to 19,040.65, 28,579.42 and 9,186.85 is: 13,789.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,040.65 : 28,579.42 = 9,186.85 : x
  2. Step 2: Convert to fraction form
    19,040.65/28,579.42 = 9,186.85/x
  3. Step 3: Cross multiply
    19,040.65x = 28,579.42 × 9,186.85
  4. Step 4: Simplify right side
    19,040.65x = 262,554,891.83
  5. Step 5: Solve for x
    x = 262,554,891.83/19,040.65
  6. Step 6: Final answer
    x = 13,789.18

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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.