Home / 18,296-27,438.60-5,815.52

Finding the Fourth Proportional to 18,296, 27,438.60 and 5,815.52

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Solution

The fourth proportional to 18,296, 27,438.60 and 5,815.52 is: 8,721.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,296 : 27,438.60 = 5,815.52 : x
  2. Step 2: Convert to fraction form
    18,296/27,438.60 = 5,815.52/x
  3. Step 3: Cross multiply
    18,296x = 27,438.60 × 5,815.52
  4. Step 4: Simplify right side
    18,296x = 159,569,727.07
  5. Step 5: Solve for x
    x = 159,569,727.07/18,296
  6. Step 6: Final answer
    x = 8,721.56

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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.