Home / 11,876.83-17,815.24-3,557.72

Finding the Fourth Proportional to 11,876.83, 17,815.24 and 3,557.72

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Solution

The fourth proportional to 11,876.83, 17,815.24 and 3,557.72 is: 5,336.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,876.83 : 17,815.24 = 3,557.72 : x
  2. Step 2: Convert to fraction form
    11,876.83/17,815.24 = 3,557.72/x
  3. Step 3: Cross multiply
    11,876.83x = 17,815.24 × 3,557.72
  4. Step 4: Simplify right side
    11,876.83x = 63,381,684.64
  5. Step 5: Solve for x
    x = 63,381,684.64/11,876.83
  6. Step 6: Final answer
    x = 5,336.58

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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.