Home / 8,236.23-12,357.09-2,689.80

Finding the Fourth Proportional to 8,236.23, 12,357.09 and 2,689.80

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Solution

The fourth proportional to 8,236.23, 12,357.09 and 2,689.80 is: 4,035.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,236.23 : 12,357.09 = 2,689.80 : x
  2. Step 2: Convert to fraction form
    8,236.23/12,357.09 = 2,689.80/x
  3. Step 3: Cross multiply
    8,236.23x = 12,357.09 × 2,689.80
  4. Step 4: Simplify right side
    8,236.23x = 33,238,100.68
  5. Step 5: Solve for x
    x = 33,238,100.68/8,236.23
  6. Step 6: Final answer
    x = 4,035.60

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1.5x scale

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.