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Finding the Fourth Proportional to 18,625.58, 25,708.75 and 11,077.23

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Solution

The fourth proportional to 18,625.58, 25,708.75 and 11,077.23 is: 15,289.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,625.58 : 25,708.75 = 11,077.23 : x
  2. Step 2: Convert to fraction form
    18,625.58/25,708.75 = 11,077.23/x
  3. Step 3: Cross multiply
    18,625.58x = 25,708.75 × 11,077.23
  4. Step 4: Simplify right side
    18,625.58x = 284,781,736.76
  5. Step 5: Solve for x
    x = 284,781,736.76/18,625.58
  6. Step 6: Final answer
    x = 15,289.82

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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.