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Finding the Fourth Proportional to 8,709.88, 13,065.60 and 2,469.95

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Solution

The fourth proportional to 8,709.88, 13,065.60 and 2,469.95 is: 3,705.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,709.88 : 13,065.60 = 2,469.95 : x
  2. Step 2: Convert to fraction form
    8,709.88/13,065.60 = 2,469.95/x
  3. Step 3: Cross multiply
    8,709.88x = 13,065.60 × 2,469.95
  4. Step 4: Simplify right side
    8,709.88x = 32,271,378.72
  5. Step 5: Solve for x
    x = 32,271,378.72/8,709.88
  6. Step 6: Final answer
    x = 3,705.15

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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.