Home / 11,299.78-16,949.93-2,980.64

Finding the Fourth Proportional to 11,299.78, 16,949.93 and 2,980.64

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Solution

The fourth proportional to 11,299.78, 16,949.93 and 2,980.64 is: 4,471.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,299.78 : 16,949.93 = 2,980.64 : x
  2. Step 2: Convert to fraction form
    11,299.78/16,949.93 = 2,980.64/x
  3. Step 3: Cross multiply
    11,299.78x = 16,949.93 × 2,980.64
  4. Step 4: Simplify right side
    11,299.78x = 50,521,680.06
  5. Step 5: Solve for x
    x = 50,521,680.06/11,299.78
  6. Step 6: Final answer
    x = 4,471.03

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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.