Home / 10,800.79-16,201.26-3,405.84

Finding the Fourth Proportional to 10,800.79, 16,201.26 and 3,405.84

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Solution

The fourth proportional to 10,800.79, 16,201.26 and 3,405.84 is: 5,108.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,800.79 : 16,201.26 = 3,405.84 : x
  2. Step 2: Convert to fraction form
    10,800.79/16,201.26 = 3,405.84/x
  3. Step 3: Cross multiply
    10,800.79x = 16,201.26 × 3,405.84
  4. Step 4: Simplify right side
    10,800.79x = 55,178,882.33
  5. Step 5: Solve for x
    x = 55,178,882.33/10,800.79
  6. Step 6: Final answer
    x = 5,108.78

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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.