Home / 8,186.78-12,283.42-2,993.06

Finding the Fourth Proportional to 8,186.78, 12,283.42 and 2,993.06

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Solution

The fourth proportional to 8,186.78, 12,283.42 and 2,993.06 is: 4,490.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,186.78 : 12,283.42 = 2,993.06 : x
  2. Step 2: Convert to fraction form
    8,186.78/12,283.42 = 2,993.06/x
  3. Step 3: Cross multiply
    8,186.78x = 12,283.42 × 2,993.06
  4. Step 4: Simplify right side
    8,186.78x = 36,765,013.07
  5. Step 5: Solve for x
    x = 36,765,013.07/8,186.78
  6. Step 6: Final answer
    x = 4,490.78

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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.