Home / 8,236.73-12,357.84-2,690.30

Finding the Fourth Proportional to 8,236.73, 12,357.84 and 2,690.30

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Solution

The fourth proportional to 8,236.73, 12,357.84 and 2,690.30 is: 4,036.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,236.73 : 12,357.84 = 2,690.30 : x
  2. Step 2: Convert to fraction form
    8,236.73/12,357.84 = 2,690.30/x
  3. Step 3: Cross multiply
    8,236.73x = 12,357.84 × 2,690.30
  4. Step 4: Simplify right side
    8,236.73x = 33,246,296.95
  5. Step 5: Solve for x
    x = 33,246,296.95/8,236.73
  6. Step 6: Final answer
    x = 4,036.35

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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.