Home / 8,859.45-13,290.61-2,620.09

Finding the Fourth Proportional to 8,859.45, 13,290.61 and 2,620.09

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Solution

The fourth proportional to 8,859.45, 13,290.61 and 2,620.09 is: 3,930.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,859.45 : 13,290.61 = 2,620.09 : x
  2. Step 2: Convert to fraction form
    8,859.45/13,290.61 = 2,620.09/x
  3. Step 3: Cross multiply
    8,859.45x = 13,290.61 × 2,620.09
  4. Step 4: Simplify right side
    8,859.45x = 34,822,594.35
  5. Step 5: Solve for x
    x = 34,822,594.35/8,859.45
  6. Step 6: Final answer
    x = 3,930.56

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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.