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Finding the Fourth Proportional to 8,239.56, 12,359.28 and 2,083.56

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Solution

The fourth proportional to 8,239.56, 12,359.28 and 2,083.56 is: 3,125.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,239.56 : 12,359.28 = 2,083.56 : x
  2. Step 2: Convert to fraction form
    8,239.56/12,359.28 = 2,083.56/x
  3. Step 3: Cross multiply
    8,239.56x = 12,359.28 × 2,083.56
  4. Step 4: Simplify right side
    8,239.56x = 25,751,301.44
  5. Step 5: Solve for x
    x = 25,751,301.44/8,239.56
  6. Step 6: Final answer
    x = 3,125.32

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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.