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Finding the Fourth Proportional to 8,009.36, 12,005.12 and 3,326.76

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Solution

The fourth proportional to 8,009.36, 12,005.12 and 3,326.76 is: 4,986.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,009.36 : 12,005.12 = 3,326.76 : x
  2. Step 2: Convert to fraction form
    8,009.36/12,005.12 = 3,326.76/x
  3. Step 3: Cross multiply
    8,009.36x = 12,005.12 × 3,326.76
  4. Step 4: Simplify right side
    8,009.36x = 39,938,153.01
  5. Step 5: Solve for x
    x = 39,938,153.01/8,009.36
  6. Step 6: Final answer
    x = 4,986.43

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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.