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Finding the Fourth Proportional to 18,683.17, 28,026.36 and 5,356.22

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Solution

The fourth proportional to 18,683.17, 28,026.36 and 5,356.22 is: 8,034.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,683.17 : 28,026.36 = 5,356.22 : x
  2. Step 2: Convert to fraction form
    18,683.17/28,026.36 = 5,356.22/x
  3. Step 3: Cross multiply
    18,683.17x = 28,026.36 × 5,356.22
  4. Step 4: Simplify right side
    18,683.17x = 150,115,209.83
  5. Step 5: Solve for x
    x = 150,115,209.83/18,683.17
  6. Step 6: Final answer
    x = 8,034.78

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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.