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Finding the Fourth Proportional to 18,023.07, 26,998.35 and 8,989.95

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Solution

The fourth proportional to 18,023.07, 26,998.35 and 8,989.95 is: 13,466.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,023.07 : 26,998.35 = 8,989.95 : x
  2. Step 2: Convert to fraction form
    18,023.07/26,998.35 = 8,989.95/x
  3. Step 3: Cross multiply
    18,023.07x = 26,998.35 × 8,989.95
  4. Step 4: Simplify right side
    18,023.07x = 242,713,681.59
  5. Step 5: Solve for x
    x = 242,713,681.59/18,023.07
  6. Step 6: Final answer
    x = 13,466.84

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.