Home / 19,183.18-28,767.21-9,319.54

Finding the Fourth Proportional to 19,183.18, 28,767.21 and 9,319.54

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Solution

The fourth proportional to 19,183.18, 28,767.21 and 9,319.54 is: 13,975.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,183.18 : 28,767.21 = 9,319.54 : x
  2. Step 2: Convert to fraction form
    19,183.18/28,767.21 = 9,319.54/x
  3. Step 3: Cross multiply
    19,183.18x = 28,767.21 × 9,319.54
  4. Step 4: Simplify right side
    19,183.18x = 268,097,164.28
  5. Step 5: Solve for x
    x = 268,097,164.28/19,183.18
  6. Step 6: Final answer
    x = 13,975.64

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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.