Home / 8,936.58-13,401.63-3,387.09

Finding the Fourth Proportional to 8,936.58, 13,401.63 and 3,387.09

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Solution

The fourth proportional to 8,936.58, 13,401.63 and 3,387.09 is: 5,079.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,936.58 : 13,401.63 = 3,387.09 : x
  2. Step 2: Convert to fraction form
    8,936.58/13,401.63 = 3,387.09/x
  3. Step 3: Cross multiply
    8,936.58x = 13,401.63 × 3,387.09
  4. Step 4: Simplify right side
    8,936.58x = 45,392,526.96
  5. Step 5: Solve for x
    x = 45,392,526.96/8,936.58
  6. Step 6: Final answer
    x = 5,079.41

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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.