Home / 10,803.78-16,207.49-3,408.08

Finding the Fourth Proportional to 10,803.78, 16,207.49 and 3,408.08

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Solution

The fourth proportional to 10,803.78, 16,207.49 and 3,408.08 is: 5,112.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,803.78 : 16,207.49 = 3,408.08 : x
  2. Step 2: Convert to fraction form
    10,803.78/16,207.49 = 3,408.08/x
  3. Step 3: Cross multiply
    10,803.78x = 16,207.49 × 3,408.08
  4. Step 4: Simplify right side
    10,803.78x = 55,236,350.00
  5. Step 5: Solve for x
    x = 55,236,350.00/10,803.78
  6. Step 6: Final answer
    x = 5,112.69

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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.