Home / 11,453.20-17,179.80-4,879.60

Finding the Fourth Proportional to 11,453.20, 17,179.80 and 4,879.60

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Solution

The fourth proportional to 11,453.20, 17,179.80 and 4,879.60 is: 7,319.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,453.20 : 17,179.80 = 4,879.60 : x
  2. Step 2: Convert to fraction form
    11,453.20/17,179.80 = 4,879.60/x
  3. Step 3: Cross multiply
    11,453.20x = 17,179.80 × 4,879.60
  4. Step 4: Simplify right side
    11,453.20x = 83,830,552.08
  5. Step 5: Solve for x
    x = 83,830,552.08/11,453.20
  6. Step 6: Final answer
    x = 7,319.40

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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.