Home / 18,928.98-28,394.82-6,443.96

Finding the Fourth Proportional to 18,928.98, 28,394.82 and 6,443.96

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Solution

The fourth proportional to 18,928.98, 28,394.82 and 6,443.96 is: 9,666.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,928.98 : 28,394.82 = 6,443.96 : x
  2. Step 2: Convert to fraction form
    18,928.98/28,394.82 = 6,443.96/x
  3. Step 3: Cross multiply
    18,928.98x = 28,394.82 × 6,443.96
  4. Step 4: Simplify right side
    18,928.98x = 182,974,942.31
  5. Step 5: Solve for x
    x = 182,974,942.31/18,928.98
  6. Step 6: Final answer
    x = 9,666.39

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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.