Home / 8,619.43-12,917.09-4,662.14

Finding the Fourth Proportional to 8,619.43, 12,917.09 and 4,662.14

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Solution

The fourth proportional to 8,619.43, 12,917.09 and 4,662.14 is: 6,986.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,619.43 : 12,917.09 = 4,662.14 : x
  2. Step 2: Convert to fraction form
    8,619.43/12,917.09 = 4,662.14/x
  3. Step 3: Cross multiply
    8,619.43x = 12,917.09 × 4,662.14
  4. Step 4: Simplify right side
    8,619.43x = 60,221,226.37
  5. Step 5: Solve for x
    x = 60,221,226.37/8,619.43
  6. Step 6: Final answer
    x = 6,986.69

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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.