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Finding the Fourth Proportional to 18,817.93, 28,228.85 and 6,339.34

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Solution

The fourth proportional to 18,817.93, 28,228.85 and 6,339.34 is: 9,509.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,817.93 : 28,228.85 = 6,339.34 : x
  2. Step 2: Convert to fraction form
    18,817.93/28,228.85 = 6,339.34/x
  3. Step 3: Cross multiply
    18,817.93x = 28,228.85 × 6,339.34
  4. Step 4: Simplify right side
    18,817.93x = 178,952,277.96
  5. Step 5: Solve for x
    x = 178,952,277.96/18,817.93
  6. Step 6: Final answer
    x = 9,509.67

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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.