Home / 11,187.28-16,779.83-3,790.87

Finding the Fourth Proportional to 11,187.28, 16,779.83 and 3,790.87

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Solution

The fourth proportional to 11,187.28, 16,779.83 and 3,790.87 is: 5,685.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,187.28 : 16,779.83 = 3,790.87 : x
  2. Step 2: Convert to fraction form
    11,187.28/16,779.83 = 3,790.87/x
  3. Step 3: Cross multiply
    11,187.28x = 16,779.83 × 3,790.87
  4. Step 4: Simplify right side
    11,187.28x = 63,610,093.25
  5. Step 5: Solve for x
    x = 63,610,093.25/11,187.28
  6. Step 6: Final answer
    x = 5,685.93

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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.