Home / 11,105.80-16,650.60-4,528.60

Finding the Fourth Proportional to 11,105.80, 16,650.60 and 4,528.60

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Solution

The fourth proportional to 11,105.80, 16,650.60 and 4,528.60 is: 6,789.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,105.80 : 16,650.60 = 4,528.60 : x
  2. Step 2: Convert to fraction form
    11,105.80/16,650.60 = 4,528.60/x
  3. Step 3: Cross multiply
    11,105.80x = 16,650.60 × 4,528.60
  4. Step 4: Simplify right side
    11,105.80x = 75,403,907.16
  5. Step 5: Solve for x
    x = 75,403,907.16/11,105.80
  6. Step 6: Final answer
    x = 6,789.60

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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.