Home / 11,312.78-16,968.56-2,993.06

Finding the Fourth Proportional to 11,312.78, 16,968.56 and 2,993.06

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Solution

The fourth proportional to 11,312.78, 16,968.56 and 2,993.06 is: 4,489.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,312.78 : 16,968.56 = 2,993.06 : x
  2. Step 2: Convert to fraction form
    11,312.78/16,968.56 = 2,993.06/x
  3. Step 3: Cross multiply
    11,312.78x = 16,968.56 × 2,993.06
  4. Step 4: Simplify right side
    11,312.78x = 50,787,945.65
  5. Step 5: Solve for x
    x = 50,787,945.65/11,312.78
  6. Step 6: Final answer
    x = 4,489.43

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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.