Home / 8,001.21-12,000.43-3,617.65

Finding the Fourth Proportional to 8,001.21, 12,000.43 and 3,617.65

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Solution

The fourth proportional to 8,001.21, 12,000.43 and 3,617.65 is: 5,425.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,001.21 : 12,000.43 = 3,617.65 : x
  2. Step 2: Convert to fraction form
    8,001.21/12,000.43 = 3,617.65/x
  3. Step 3: Cross multiply
    8,001.21x = 12,000.43 × 3,617.65
  4. Step 4: Simplify right side
    8,001.21x = 43,413,355.59
  5. Step 5: Solve for x
    x = 43,413,355.59/8,001.21
  6. Step 6: Final answer
    x = 5,425.85

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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.