Home / 11,217.60-16,826.40-3,819.60

Finding the Fourth Proportional to 11,217.60, 16,826.40 and 3,819.60

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Solution

The fourth proportional to 11,217.60, 16,826.40 and 3,819.60 is: 5,729.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,217.60 : 16,826.40 = 3,819.60 : x
  2. Step 2: Convert to fraction form
    11,217.60/16,826.40 = 3,819.60/x
  3. Step 3: Cross multiply
    11,217.60x = 16,826.40 × 3,819.60
  4. Step 4: Simplify right side
    11,217.60x = 64,270,117.44
  5. Step 5: Solve for x
    x = 64,270,117.44/11,217.60
  6. Step 6: Final answer
    x = 5,729.40

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1.5x scale

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.