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Finding the Fourth Proportional to 8,879.68, 13,319.04 and 2,723.68

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Solution

The fourth proportional to 8,879.68, 13,319.04 and 2,723.68 is: 4,085.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,879.68 : 13,319.04 = 2,723.68 : x
  2. Step 2: Convert to fraction form
    8,879.68/13,319.04 = 2,723.68/x
  3. Step 3: Cross multiply
    8,879.68x = 13,319.04 × 2,723.68
  4. Step 4: Simplify right side
    8,879.68x = 36,276,802.87
  5. Step 5: Solve for x
    x = 36,276,802.87/8,879.68
  6. Step 6: Final answer
    x = 4,085.37

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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.