Home / 7,619.86-11,426.61-2,687.27

Finding the Fourth Proportional to 7,619.86, 11,426.61 and 2,687.27

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Solution

The fourth proportional to 7,619.86, 11,426.61 and 2,687.27 is: 4,029.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,619.86 : 11,426.61 = 2,687.27 : x
  2. Step 2: Convert to fraction form
    7,619.86/11,426.61 = 2,687.27/x
  3. Step 3: Cross multiply
    7,619.86x = 11,426.61 × 2,687.27
  4. Step 4: Simplify right side
    7,619.86x = 30,706,386.25
  5. Step 5: Solve for x
    x = 30,706,386.25/7,619.86
  6. Step 6: Final answer
    x = 4,029.79

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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.