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Finding the Fourth Proportional to 9,271.44, 13,911 and 3,728.71

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Solution

The fourth proportional to 9,271.44, 13,911 and 3,728.71 is: 5,594.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,271.44 : 13,911 = 3,728.71 : x
  2. Step 2: Convert to fraction form
    9,271.44/13,911 = 3,728.71/x
  3. Step 3: Cross multiply
    9,271.44x = 13,911 × 3,728.71
  4. Step 4: Simplify right side
    9,271.44x = 51,870,084.81
  5. Step 5: Solve for x
    x = 51,870,084.81/9,271.44
  6. Step 6: Final answer
    x = 5,594.61

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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.