Home / 8,936.21-12,333.72-5,161.82

Finding the Fourth Proportional to 8,936.21, 12,333.72 and 5,161.82

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Solution

The fourth proportional to 8,936.21, 12,333.72 and 5,161.82 is: 7,124.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,936.21 : 12,333.72 = 5,161.82 : x
  2. Step 2: Convert to fraction form
    8,936.21/12,333.72 = 5,161.82/x
  3. Step 3: Cross multiply
    8,936.21x = 12,333.72 × 5,161.82
  4. Step 4: Simplify right side
    8,936.21x = 63,664,380.90
  5. Step 5: Solve for x
    x = 63,664,380.90/8,936.21
  6. Step 6: Final answer
    x = 7,124.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.