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Finding the Fourth Proportional to 8,803.80, 13,206.90 and 3,255.80

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Solution

The fourth proportional to 8,803.80, 13,206.90 and 3,255.80 is: 4,884.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,803.80 : 13,206.90 = 3,255.80 : x
  2. Step 2: Convert to fraction form
    8,803.80/13,206.90 = 3,255.80/x
  3. Step 3: Cross multiply
    8,803.80x = 13,206.90 × 3,255.80
  4. Step 4: Simplify right side
    8,803.80x = 42,999,025.02
  5. Step 5: Solve for x
    x = 42,999,025.02/8,803.80
  6. Step 6: Final answer
    x = 4,884.14

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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.