Home / 8,694.70-13,038.96-3,146.60

Finding the Fourth Proportional to 8,694.70, 13,038.96 and 3,146.60

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Solution

The fourth proportional to 8,694.70, 13,038.96 and 3,146.60 is: 4,718.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,694.70 : 13,038.96 = 3,146.60 : x
  2. Step 2: Convert to fraction form
    8,694.70/13,038.96 = 3,146.60/x
  3. Step 3: Cross multiply
    8,694.70x = 13,038.96 × 3,146.60
  4. Step 4: Simplify right side
    8,694.70x = 41,028,391.54
  5. Step 5: Solve for x
    x = 41,028,391.54/8,694.70
  6. Step 6: Final answer
    x = 4,718.78

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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.