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Finding the Fourth Proportional to 8,803.70, 13,209.83 and 3,872.69

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Solution

The fourth proportional to 8,803.70, 13,209.83 and 3,872.69 is: 5,810.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,803.70 : 13,209.83 = 3,872.69 : x
  2. Step 2: Convert to fraction form
    8,803.70/13,209.83 = 3,872.69/x
  3. Step 3: Cross multiply
    8,803.70x = 13,209.83 × 3,872.69
  4. Step 4: Simplify right side
    8,803.70x = 51,157,491.13
  5. Step 5: Solve for x
    x = 51,157,491.13/8,803.70
  6. Step 6: Final answer
    x = 5,810.91

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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.