Home / 11,521.25-17,267.49-4,939.80

Finding the Fourth Proportional to 11,521.25, 17,267.49 and 4,939.80

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Solution

The fourth proportional to 11,521.25, 17,267.49 and 4,939.80 is: 7,403.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,521.25 : 17,267.49 = 4,939.80 : x
  2. Step 2: Convert to fraction form
    11,521.25/17,267.49 = 4,939.80/x
  3. Step 3: Cross multiply
    11,521.25x = 17,267.49 × 4,939.80
  4. Step 4: Simplify right side
    11,521.25x = 85,297,947.10
  5. Step 5: Solve for x
    x = 85,297,947.10/11,521.25
  6. Step 6: Final answer
    x = 7,403.53

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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.