Home / 8,961.06-13,443.21-3,415.80

Finding the Fourth Proportional to 8,961.06, 13,443.21 and 3,415.80

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Solution

The fourth proportional to 8,961.06, 13,443.21 and 3,415.80 is: 5,124.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,961.06 : 13,443.21 = 3,415.80 : x
  2. Step 2: Convert to fraction form
    8,961.06/13,443.21 = 3,415.80/x
  3. Step 3: Cross multiply
    8,961.06x = 13,443.21 × 3,415.80
  4. Step 4: Simplify right side
    8,961.06x = 45,919,316.72
  5. Step 5: Solve for x
    x = 45,919,316.72/8,961.06
  6. Step 6: Final answer
    x = 5,124.32

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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.