Home / 8,619.40-12,927.42-3,937.96

Finding the Fourth Proportional to 8,619.40, 12,927.42 and 3,937.96

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Solution

The fourth proportional to 8,619.40, 12,927.42 and 3,937.96 is: 5,906.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,619.40 : 12,927.42 = 3,937.96 : x
  2. Step 2: Convert to fraction form
    8,619.40/12,927.42 = 3,937.96/x
  3. Step 3: Cross multiply
    8,619.40x = 12,927.42 × 3,937.96
  4. Step 4: Simplify right side
    8,619.40x = 50,907,662.86
  5. Step 5: Solve for x
    x = 50,907,662.86/8,619.40
  6. Step 6: Final answer
    x = 5,906.17

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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.