Home / 8,201.57-12,283.86-3,809.78

Finding the Fourth Proportional to 8,201.57, 12,283.86 and 3,809.78

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Solution

The fourth proportional to 8,201.57, 12,283.86 and 3,809.78 is: 5,706.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,201.57 : 12,283.86 = 3,809.78 : x
  2. Step 2: Convert to fraction form
    8,201.57/12,283.86 = 3,809.78/x
  3. Step 3: Cross multiply
    8,201.57x = 12,283.86 × 3,809.78
  4. Step 4: Simplify right side
    8,201.57x = 46,798,815.81
  5. Step 5: Solve for x
    x = 46,798,815.81/8,201.57
  6. Step 6: Final answer
    x = 5,706.08

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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.