Home / 8,722.72-13,084.60-2,879.38

Finding the Fourth Proportional to 8,722.72, 13,084.60 and 2,879.38

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Solution

The fourth proportional to 8,722.72, 13,084.60 and 2,879.38 is: 4,319.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,722.72 : 13,084.60 = 2,879.38 : x
  2. Step 2: Convert to fraction form
    8,722.72/13,084.60 = 2,879.38/x
  3. Step 3: Cross multiply
    8,722.72x = 13,084.60 × 2,879.38
  4. Step 4: Simplify right side
    8,722.72x = 37,675,535.55
  5. Step 5: Solve for x
    x = 37,675,535.55/8,722.72
  6. Step 6: Final answer
    x = 4,319.24

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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.