Home / 11,155.88-16,733.81-4,230.38

Finding the Fourth Proportional to 11,155.88, 16,733.81 and 4,230.38

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Solution

The fourth proportional to 11,155.88, 16,733.81 and 4,230.38 is: 6,345.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,155.88 : 16,733.81 = 4,230.38 : x
  2. Step 2: Convert to fraction form
    11,155.88/16,733.81 = 4,230.38/x
  3. Step 3: Cross multiply
    11,155.88x = 16,733.81 × 4,230.38
  4. Step 4: Simplify right side
    11,155.88x = 70,790,302.05
  5. Step 5: Solve for x
    x = 70,790,302.05/11,155.88
  6. Step 6: Final answer
    x = 6,345.56

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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.