Home / 8,168.44-11,272.68-4,981.92

Finding the Fourth Proportional to 8,168.44, 11,272.68 and 4,981.92

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Solution

The fourth proportional to 8,168.44, 11,272.68 and 4,981.92 is: 6,875.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,168.44 : 11,272.68 = 4,981.92 : x
  2. Step 2: Convert to fraction form
    8,168.44/11,272.68 = 4,981.92/x
  3. Step 3: Cross multiply
    8,168.44x = 11,272.68 × 4,981.92
  4. Step 4: Simplify right side
    8,168.44x = 56,159,589.95
  5. Step 5: Solve for x
    x = 56,159,589.95/8,168.44
  6. Step 6: Final answer
    x = 6,875.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.