Home / 11,229.79-16,845.51-5,679.28

Finding the Fourth Proportional to 11,229.79, 16,845.51 and 5,679.28

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Solution

The fourth proportional to 11,229.79, 16,845.51 and 5,679.28 is: 8,519.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,229.79 : 16,845.51 = 5,679.28 : x
  2. Step 2: Convert to fraction form
    11,229.79/16,845.51 = 5,679.28/x
  3. Step 3: Cross multiply
    11,229.79x = 16,845.51 × 5,679.28
  4. Step 4: Simplify right side
    11,229.79x = 95,670,368.03
  5. Step 5: Solve for x
    x = 95,670,368.03/11,229.79
  6. Step 6: Final answer
    x = 8,519.34

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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.