Home / 8,826.18-13,239.39-3,894.78

Finding the Fourth Proportional to 8,826.18, 13,239.39 and 3,894.78

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Solution

The fourth proportional to 8,826.18, 13,239.39 and 3,894.78 is: 5,842.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,826.18 : 13,239.39 = 3,894.78 : x
  2. Step 2: Convert to fraction form
    8,826.18/13,239.39 = 3,894.78/x
  3. Step 3: Cross multiply
    8,826.18x = 13,239.39 × 3,894.78
  4. Step 4: Simplify right side
    8,826.18x = 51,564,511.38
  5. Step 5: Solve for x
    x = 51,564,511.38/8,826.18
  6. Step 6: Final answer
    x = 5,842.22

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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.