Home / 8,936.20-13,404.30-6,171.40

Finding the Fourth Proportional to 8,936.20, 13,404.30 and 6,171.40

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Solution

The fourth proportional to 8,936.20, 13,404.30 and 6,171.40 is: 9,257.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,936.20 : 13,404.30 = 6,171.40 : x
  2. Step 2: Convert to fraction form
    8,936.20/13,404.30 = 6,171.40/x
  3. Step 3: Cross multiply
    8,936.20x = 13,404.30 × 6,171.40
  4. Step 4: Simplify right side
    8,936.20x = 82,723,297.02
  5. Step 5: Solve for x
    x = 82,723,297.02/8,936.20
  6. Step 6: Final answer
    x = 9,257.10

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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.