Home / 8,622.14-12,921.52-3,936.34

Finding the Fourth Proportional to 8,622.14, 12,921.52 and 3,936.34

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Solution

The fourth proportional to 8,622.14, 12,921.52 and 3,936.34 is: 5,899.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,622.14 : 12,921.52 = 3,936.34 : x
  2. Step 2: Convert to fraction form
    8,622.14/12,921.52 = 3,936.34/x
  3. Step 3: Cross multiply
    8,622.14x = 12,921.52 × 3,936.34
  4. Step 4: Simplify right side
    8,622.14x = 50,863,498.66
  5. Step 5: Solve for x
    x = 50,863,498.66/8,622.14
  6. Step 6: Final answer
    x = 5,899.17

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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.