Home / 8,007.12-12,009.02-2,162.36

Finding the Fourth Proportional to 8,007.12, 12,009.02 and 2,162.36

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Solution

The fourth proportional to 8,007.12, 12,009.02 and 2,162.36 is: 3,243.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,007.12 : 12,009.02 = 2,162.36 : x
  2. Step 2: Convert to fraction form
    8,007.12/12,009.02 = 2,162.36/x
  3. Step 3: Cross multiply
    8,007.12x = 12,009.02 × 2,162.36
  4. Step 4: Simplify right side
    8,007.12x = 25,967,843.70
  5. Step 5: Solve for x
    x = 25,967,843.70/8,007.12
  6. Step 6: Final answer
    x = 3,243.09

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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.