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Finding the Fourth Proportional to 12,208.03, 18,311.04 and 3,887.71

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Solution

The fourth proportional to 12,208.03, 18,311.04 and 3,887.71 is: 5,831.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,208.03 : 18,311.04 = 3,887.71 : x
  2. Step 2: Convert to fraction form
    12,208.03/18,311.04 = 3,887.71/x
  3. Step 3: Cross multiply
    12,208.03x = 18,311.04 × 3,887.71
  4. Step 4: Simplify right side
    12,208.03x = 71,188,013.32
  5. Step 5: Solve for x
    x = 71,188,013.32/12,208.03
  6. Step 6: Final answer
    x = 5,831.24

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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.