Home / 9,181.71-13,772.21-2,942.06

Finding the Fourth Proportional to 9,181.71, 13,772.21 and 2,942.06

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Solution

The fourth proportional to 9,181.71, 13,772.21 and 2,942.06 is: 4,412.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,181.71 : 13,772.21 = 2,942.06 : x
  2. Step 2: Convert to fraction form
    9,181.71/13,772.21 = 2,942.06/x
  3. Step 3: Cross multiply
    9,181.71x = 13,772.21 × 2,942.06
  4. Step 4: Simplify right side
    9,181.71x = 40,518,584.58
  5. Step 5: Solve for x
    x = 40,518,584.58/9,181.71
  6. Step 6: Final answer
    x = 4,412.97

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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.