Home / 12,788.69-19,178.44-4,893.41

Finding the Fourth Proportional to 12,788.69, 19,178.44 and 4,893.41

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Solution

The fourth proportional to 12,788.69, 19,178.44 and 4,893.41 is: 7,338.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,788.69 : 19,178.44 = 4,893.41 : x
  2. Step 2: Convert to fraction form
    12,788.69/19,178.44 = 4,893.41/x
  3. Step 3: Cross multiply
    12,788.69x = 19,178.44 × 4,893.41
  4. Step 4: Simplify right side
    12,788.69x = 93,848,005.79
  5. Step 5: Solve for x
    x = 93,848,005.79/12,788.69
  6. Step 6: Final answer
    x = 7,338.36

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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.