Home / 10,811.45-16,187.85-5,606.39

Finding the Fourth Proportional to 10,811.45, 16,187.85 and 5,606.39

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Solution

The fourth proportional to 10,811.45, 16,187.85 and 5,606.39 is: 8,394.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,811.45 : 16,187.85 = 5,606.39 : x
  2. Step 2: Convert to fraction form
    10,811.45/16,187.85 = 5,606.39/x
  3. Step 3: Cross multiply
    10,811.45x = 16,187.85 × 5,606.39
  4. Step 4: Simplify right side
    10,811.45x = 90,755,400.36
  5. Step 5: Solve for x
    x = 90,755,400.36/10,811.45
  6. Step 6: Final answer
    x = 8,394.38

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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.