Home / 10,800.68-16,201.70-3,405.43

Finding the Fourth Proportional to 10,800.68, 16,201.70 and 3,405.43

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Solution

The fourth proportional to 10,800.68, 16,201.70 and 3,405.43 is: 5,108.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,800.68 : 16,201.70 = 3,405.43 : x
  2. Step 2: Convert to fraction form
    10,800.68/16,201.70 = 3,405.43/x
  3. Step 3: Cross multiply
    10,800.68x = 16,201.70 × 3,405.43
  4. Step 4: Simplify right side
    10,800.68x = 55,173,755.23
  5. Step 5: Solve for x
    x = 55,173,755.23/10,800.68
  6. Step 6: Final answer
    x = 5,108.36

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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.