Home / 11,826.80-17,724.42-4,423.76

Finding the Fourth Proportional to 11,826.80, 17,724.42 and 4,423.76

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Solution

The fourth proportional to 11,826.80, 17,724.42 and 4,423.76 is: 6,629.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,826.80 : 17,724.42 = 4,423.76 : x
  2. Step 2: Convert to fraction form
    11,826.80/17,724.42 = 4,423.76/x
  3. Step 3: Cross multiply
    11,826.80x = 17,724.42 × 4,423.76
  4. Step 4: Simplify right side
    11,826.80x = 78,408,580.22
  5. Step 5: Solve for x
    x = 78,408,580.22/11,826.80
  6. Step 6: Final answer
    x = 6,629.74

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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.