Home / 18,896.19-28,342.49-4,855.79

Finding the Fourth Proportional to 18,896.19, 28,342.49 and 4,855.79

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Solution

The fourth proportional to 18,896.19, 28,342.49 and 4,855.79 is: 7,283.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,896.19 : 28,342.49 = 4,855.79 : x
  2. Step 2: Convert to fraction form
    18,896.19/28,342.49 = 4,855.79/x
  3. Step 3: Cross multiply
    18,896.19x = 28,342.49 × 4,855.79
  4. Step 4: Simplify right side
    18,896.19x = 137,625,013.53
  5. Step 5: Solve for x
    x = 137,625,013.53/18,896.19
  6. Step 6: Final answer
    x = 7,283.21

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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.