Home / 11,287.74-16,921.49-4,266.44

Finding the Fourth Proportional to 11,287.74, 16,921.49 and 4,266.44

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Solution

The fourth proportional to 11,287.74, 16,921.49 and 4,266.44 is: 6,395.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,287.74 : 16,921.49 = 4,266.44 : x
  2. Step 2: Convert to fraction form
    11,287.74/16,921.49 = 4,266.44/x
  3. Step 3: Cross multiply
    11,287.74x = 16,921.49 × 4,266.44
  4. Step 4: Simplify right side
    11,287.74x = 72,194,570.05
  5. Step 5: Solve for x
    x = 72,194,570.05/11,287.74
  6. Step 6: Final answer
    x = 6,395.84

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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.