Home / 11,721.15-17,579.83-4,329.09

Finding the Fourth Proportional to 11,721.15, 17,579.83 and 4,329.09

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Solution

The fourth proportional to 11,721.15, 17,579.83 and 4,329.09 is: 6,492.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,721.15 : 17,579.83 = 4,329.09 : x
  2. Step 2: Convert to fraction form
    11,721.15/17,579.83 = 4,329.09/x
  3. Step 3: Cross multiply
    11,721.15x = 17,579.83 × 4,329.09
  4. Step 4: Simplify right side
    11,721.15x = 76,104,666.25
  5. Step 5: Solve for x
    x = 76,104,666.25/11,721.15
  6. Step 6: Final answer
    x = 6,492.94

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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.