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Finding the Fourth Proportional to 19,201.28, 28,792.08 and 8,804

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Solution

The fourth proportional to 19,201.28, 28,792.08 and 8,804 is: 13,201.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,201.28 : 28,792.08 = 8,804 : x
  2. Step 2: Convert to fraction form
    19,201.28/28,792.08 = 8,804/x
  3. Step 3: Cross multiply
    19,201.28x = 28,792.08 × 8,804
  4. Step 4: Simplify right side
    19,201.28x = 253,485,472.32
  5. Step 5: Solve for x
    x = 253,485,472.32/19,201.28
  6. Step 6: Final answer
    x = 13,201.49

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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.