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Finding the Fourth Proportional to 8,005.81, 12,008.46 and 3,623.27

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Solution

The fourth proportional to 8,005.81, 12,008.46 and 3,623.27 is: 5,434.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,005.81 : 12,008.46 = 3,623.27 : x
  2. Step 2: Convert to fraction form
    8,005.81/12,008.46 = 3,623.27/x
  3. Step 3: Cross multiply
    8,005.81x = 12,008.46 × 3,623.27
  4. Step 4: Simplify right side
    8,005.81x = 43,509,892.86
  5. Step 5: Solve for x
    x = 43,509,892.86/8,005.81
  6. Step 6: Final answer
    x = 5,434.79

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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.