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Finding the Fourth Proportional to 18,192.90, 25,105.95 and 10,235.11

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Solution

The fourth proportional to 18,192.90, 25,105.95 and 10,235.11 is: 14,124.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,192.90 : 25,105.95 = 10,235.11 : x
  2. Step 2: Convert to fraction form
    18,192.90/25,105.95 = 10,235.11/x
  3. Step 3: Cross multiply
    18,192.90x = 25,105.95 × 10,235.11
  4. Step 4: Simplify right side
    18,192.90x = 256,962,144.21
  5. Step 5: Solve for x
    x = 256,962,144.21/18,192.90
  6. Step 6: Final answer
    x = 14,124.31

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.