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Finding the Fourth Proportional to 8,236.69, 12,354.95 and 2,690.01

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Solution

The fourth proportional to 8,236.69, 12,354.95 and 2,690.01 is: 4,034.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,236.69 : 12,354.95 = 2,690.01 : x
  2. Step 2: Convert to fraction form
    8,236.69/12,354.95 = 2,690.01/x
  3. Step 3: Cross multiply
    8,236.69x = 12,354.95 × 2,690.01
  4. Step 4: Simplify right side
    8,236.69x = 33,234,945.77
  5. Step 5: Solve for x
    x = 33,234,945.77/8,236.69
  6. Step 6: Final answer
    x = 4,034.99

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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.