Home / 8,745.36-13,111.83-2,820.41

Finding the Fourth Proportional to 8,745.36, 13,111.83 and 2,820.41

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Solution

The fourth proportional to 8,745.36, 13,111.83 and 2,820.41 is: 4,228.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,745.36 : 13,111.83 = 2,820.41 : x
  2. Step 2: Convert to fraction form
    8,745.36/13,111.83 = 2,820.41/x
  3. Step 3: Cross multiply
    8,745.36x = 13,111.83 × 2,820.41
  4. Step 4: Simplify right side
    8,745.36x = 36,980,769.23
  5. Step 5: Solve for x
    x = 36,980,769.23/8,745.36
  6. Step 6: Final answer
    x = 4,228.62

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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.