Home / 11,940.32-17,913.72-4,149.56

Finding the Fourth Proportional to 11,940.32, 17,913.72 and 4,149.56

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Solution

The fourth proportional to 11,940.32, 17,913.72 and 4,149.56 is: 6,225.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,940.32 : 17,913.72 = 4,149.56 : x
  2. Step 2: Convert to fraction form
    11,940.32/17,913.72 = 4,149.56/x
  3. Step 3: Cross multiply
    11,940.32x = 17,913.72 × 4,149.56
  4. Step 4: Simplify right side
    11,940.32x = 74,334,055.96
  5. Step 5: Solve for x
    x = 74,334,055.96/11,940.32
  6. Step 6: Final answer
    x = 6,225.47

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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.