Home / 8,628.31-12,954.34-6,874.39

Finding the Fourth Proportional to 8,628.31, 12,954.34 and 6,874.39

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Solution

The fourth proportional to 8,628.31, 12,954.34 and 6,874.39 is: 10,321.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,628.31 : 12,954.34 = 6,874.39 : x
  2. Step 2: Convert to fraction form
    8,628.31/12,954.34 = 6,874.39/x
  3. Step 3: Cross multiply
    8,628.31x = 12,954.34 × 6,874.39
  4. Step 4: Simplify right side
    8,628.31x = 89,053,120.58
  5. Step 5: Solve for x
    x = 89,053,120.58/8,628.31
  6. Step 6: Final answer
    x = 10,321.04

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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.