Home / 11,721.92-17,574.37-5,478.44

Finding the Fourth Proportional to 11,721.92, 17,574.37 and 5,478.44

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Solution

The fourth proportional to 11,721.92, 17,574.37 and 5,478.44 is: 8,213.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,721.92 : 17,574.37 = 5,478.44 : x
  2. Step 2: Convert to fraction form
    11,721.92/17,574.37 = 5,478.44/x
  3. Step 3: Cross multiply
    11,721.92x = 17,574.37 × 5,478.44
  4. Step 4: Simplify right side
    11,721.92x = 96,280,030.01
  5. Step 5: Solve for x
    x = 96,280,030.01/11,721.92
  6. Step 6: Final answer
    x = 8,213.68

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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.