Home / 18,710.46-28,072.31-11,682.33

Finding the Fourth Proportional to 18,710.46, 28,072.31 and 11,682.33

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Solution

The fourth proportional to 18,710.46, 28,072.31 and 11,682.33 is: 17,527.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,710.46 : 28,072.31 = 11,682.33 : x
  2. Step 2: Convert to fraction form
    18,710.46/28,072.31 = 11,682.33/x
  3. Step 3: Cross multiply
    18,710.46x = 28,072.31 × 11,682.33
  4. Step 4: Simplify right side
    18,710.46x = 327,949,825.60
  5. Step 5: Solve for x
    x = 327,949,825.60/18,710.46
  6. Step 6: Final answer
    x = 17,527.62

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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.