Home / 8,825.70-13,234.95-2,979.30

Finding the Fourth Proportional to 8,825.70, 13,234.95 and 2,979.30

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Solution

The fourth proportional to 8,825.70, 13,234.95 and 2,979.30 is: 4,467.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,825.70 : 13,234.95 = 2,979.30 : x
  2. Step 2: Convert to fraction form
    8,825.70/13,234.95 = 2,979.30/x
  3. Step 3: Cross multiply
    8,825.70x = 13,234.95 × 2,979.30
  4. Step 4: Simplify right side
    8,825.70x = 39,430,886.54
  5. Step 5: Solve for x
    x = 39,430,886.54/8,825.70
  6. Step 6: Final answer
    x = 4,467.73

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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.