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Finding the Fourth Proportional to 8,859.95, 13,292.74 and 2,620.00

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Solution

The fourth proportional to 8,859.95, 13,292.74 and 2,620.00 is: 3,930.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,859.95 : 13,292.74 = 2,620.00 : x
  2. Step 2: Convert to fraction form
    8,859.95/13,292.74 = 2,620.00/x
  3. Step 3: Cross multiply
    8,859.95x = 13,292.74 × 2,620.00
  4. Step 4: Simplify right side
    8,859.95x = 34,826,912.34
  5. Step 5: Solve for x
    x = 34,826,912.34/8,859.95
  6. Step 6: Final answer
    x = 3,930.83

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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.