Home / 8,718.45-13,069.70-3,786.31

Finding the Fourth Proportional to 8,718.45, 13,069.70 and 3,786.31

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Solution

The fourth proportional to 8,718.45, 13,069.70 and 3,786.31 is: 5,676.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,718.45 : 13,069.70 = 3,786.31 : x
  2. Step 2: Convert to fraction form
    8,718.45/13,069.70 = 3,786.31/x
  3. Step 3: Cross multiply
    8,718.45x = 13,069.70 × 3,786.31
  4. Step 4: Simplify right side
    8,718.45x = 49,485,947.41
  5. Step 5: Solve for x
    x = 49,485,947.41/8,718.45
  6. Step 6: Final answer
    x = 5,676.01

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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.