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Finding the Fourth Proportional to 19,204.28, 28,796.58 and 8,807

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Solution

The fourth proportional to 19,204.28, 28,796.58 and 8,807 is: 13,205.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,204.28 : 28,796.58 = 8,807 : x
  2. Step 2: Convert to fraction form
    19,204.28/28,796.58 = 8,807/x
  3. Step 3: Cross multiply
    19,204.28x = 28,796.58 × 8,807
  4. Step 4: Simplify right side
    19,204.28x = 253,611,480.06
  5. Step 5: Solve for x
    x = 253,611,480.06/19,204.28
  6. Step 6: Final answer
    x = 13,205.99

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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.