Home / 8,979.90-13,467.93-2,820.54

Finding the Fourth Proportional to 8,979.90, 13,467.93 and 2,820.54

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Solution

The fourth proportional to 8,979.90, 13,467.93 and 2,820.54 is: 4,230.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,979.90 : 13,467.93 = 2,820.54 : x
  2. Step 2: Convert to fraction form
    8,979.90/13,467.93 = 2,820.54/x
  3. Step 3: Cross multiply
    8,979.90x = 13,467.93 × 2,820.54
  4. Step 4: Simplify right side
    8,979.90x = 37,986,835.28
  5. Step 5: Solve for x
    x = 37,986,835.28/8,979.90
  6. Step 6: Final answer
    x = 4,230.21

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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.