Home / 18,208.84-27,308.54-6,520.36

Finding the Fourth Proportional to 18,208.84, 27,308.54 and 6,520.36

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Solution

The fourth proportional to 18,208.84, 27,308.54 and 6,520.36 is: 9,778.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,208.84 : 27,308.54 = 6,520.36 : x
  2. Step 2: Convert to fraction form
    18,208.84/27,308.54 = 6,520.36/x
  3. Step 3: Cross multiply
    18,208.84x = 27,308.54 × 6,520.36
  4. Step 4: Simplify right side
    18,208.84x = 178,061,511.87
  5. Step 5: Solve for x
    x = 178,061,511.87/18,208.84
  6. Step 6: Final answer
    x = 9,778.85

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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.