Home / 8,002.12-11,992.38-4,098.28

Finding the Fourth Proportional to 8,002.12, 11,992.38 and 4,098.28

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Solution

The fourth proportional to 8,002.12, 11,992.38 and 4,098.28 is: 6,141.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,002.12 : 11,992.38 = 4,098.28 : x
  2. Step 2: Convert to fraction form
    8,002.12/11,992.38 = 4,098.28/x
  3. Step 3: Cross multiply
    8,002.12x = 11,992.38 × 4,098.28
  4. Step 4: Simplify right side
    8,002.12x = 49,148,131.11
  5. Step 5: Solve for x
    x = 49,148,131.11/8,002.12
  6. Step 6: Final answer
    x = 6,141.89

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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.