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Finding the Fourth Proportional to 8,182.84, 12,274 and 2,339.45

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Solution

The fourth proportional to 8,182.84, 12,274 and 2,339.45 is: 3,509.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,182.84 : 12,274 = 2,339.45 : x
  2. Step 2: Convert to fraction form
    8,182.84/12,274 = 2,339.45/x
  3. Step 3: Cross multiply
    8,182.84x = 12,274 × 2,339.45
  4. Step 4: Simplify right side
    8,182.84x = 28,714,409.30
  5. Step 5: Solve for x
    x = 28,714,409.30/8,182.84
  6. Step 6: Final answer
    x = 3,509.10

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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.