Home / 11,020.69-16,528.90-3,121.29

Finding the Fourth Proportional to 11,020.69, 16,528.90 and 3,121.29

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Solution

The fourth proportional to 11,020.69, 16,528.90 and 3,121.29 is: 4,681.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,020.69 : 16,528.90 = 3,121.29 : x
  2. Step 2: Convert to fraction form
    11,020.69/16,528.90 = 3,121.29/x
  3. Step 3: Cross multiply
    11,020.69x = 16,528.90 × 3,121.29
  4. Step 4: Simplify right side
    11,020.69x = 51,591,490.28
  5. Step 5: Solve for x
    x = 51,591,490.28/11,020.69
  6. Step 6: Final answer
    x = 4,681.33

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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.