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Finding the Fourth Proportional to 8,879.22, 13,305.47 and 7,022.70

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Solution

The fourth proportional to 8,879.22, 13,305.47 and 7,022.70 is: 10,523.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,879.22 : 13,305.47 = 7,022.70 : x
  2. Step 2: Convert to fraction form
    8,879.22/13,305.47 = 7,022.70/x
  3. Step 3: Cross multiply
    8,879.22x = 13,305.47 × 7,022.70
  4. Step 4: Simplify right side
    8,879.22x = 93,440,289.06
  5. Step 5: Solve for x
    x = 93,440,289.06/8,879.22
  6. Step 6: Final answer
    x = 10,523.48

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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.