Home / 8,629.40-12,944.10-2,786.01

Finding the Fourth Proportional to 8,629.40, 12,944.10 and 2,786.01

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Solution

The fourth proportional to 8,629.40, 12,944.10 and 2,786.01 is: 4,179.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,629.40 : 12,944.10 = 2,786.01 : x
  2. Step 2: Convert to fraction form
    8,629.40/12,944.10 = 2,786.01/x
  3. Step 3: Cross multiply
    8,629.40x = 12,944.10 × 2,786.01
  4. Step 4: Simplify right side
    8,629.40x = 36,062,392.04
  5. Step 5: Solve for x
    x = 36,062,392.04/8,629.40
  6. Step 6: Final answer
    x = 4,179.02

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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.