Home / 11,943.36-17,913.04-3,621.39

Finding the Fourth Proportional to 11,943.36, 17,913.04 and 3,621.39

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Solution

The fourth proportional to 11,943.36, 17,913.04 and 3,621.39 is: 5,431.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,943.36 : 17,913.04 = 3,621.39 : x
  2. Step 2: Convert to fraction form
    11,943.36/17,913.04 = 3,621.39/x
  3. Step 3: Cross multiply
    11,943.36x = 17,913.04 × 3,621.39
  4. Step 4: Simplify right side
    11,943.36x = 64,869,996.25
  5. Step 5: Solve for x
    x = 64,869,996.25/11,943.36
  6. Step 6: Final answer
    x = 5,431.47

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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.