Home / 8,481.28-12,722.76-2,636.32

Finding the Fourth Proportional to 8,481.28, 12,722.76 and 2,636.32

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Solution

The fourth proportional to 8,481.28, 12,722.76 and 2,636.32 is: 3,954.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,481.28 : 12,722.76 = 2,636.32 : x
  2. Step 2: Convert to fraction form
    8,481.28/12,722.76 = 2,636.32/x
  3. Step 3: Cross multiply
    8,481.28x = 12,722.76 × 2,636.32
  4. Step 4: Simplify right side
    8,481.28x = 33,541,266.64
  5. Step 5: Solve for x
    x = 33,541,266.64/8,481.28
  6. Step 6: Final answer
    x = 3,954.74

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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.