Home / 11,201.80-16,802.70-3,814.60

Finding the Fourth Proportional to 11,201.80, 16,802.70 and 3,814.60

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Solution

The fourth proportional to 11,201.80, 16,802.70 and 3,814.60 is: 5,721.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,201.80 : 16,802.70 = 3,814.60 : x
  2. Step 2: Convert to fraction form
    11,201.80/16,802.70 = 3,814.60/x
  3. Step 3: Cross multiply
    11,201.80x = 16,802.70 × 3,814.60
  4. Step 4: Simplify right side
    11,201.80x = 64,095,579.42
  5. Step 5: Solve for x
    x = 64,095,579.42/11,201.80
  6. Step 6: Final answer
    x = 5,721.90

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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.