Home / 10,826.89-16,240.61-5,279.47

Finding the Fourth Proportional to 10,826.89, 16,240.61 and 5,279.47

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Solution

The fourth proportional to 10,826.89, 16,240.61 and 5,279.47 is: 7,919.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,826.89 : 16,240.61 = 5,279.47 : x
  2. Step 2: Convert to fraction form
    10,826.89/16,240.61 = 5,279.47/x
  3. Step 3: Cross multiply
    10,826.89x = 16,240.61 × 5,279.47
  4. Step 4: Simplify right side
    10,826.89x = 85,741,813.28
  5. Step 5: Solve for x
    x = 85,741,813.28/10,826.89
  6. Step 6: Final answer
    x = 7,919.34

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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.