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Finding the Fourth Proportional to 18,013.59, 27,020.39 and 5,533.11

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Solution

The fourth proportional to 18,013.59, 27,020.39 and 5,533.11 is: 8,299.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,013.59 : 27,020.39 = 5,533.11 : x
  2. Step 2: Convert to fraction form
    18,013.59/27,020.39 = 5,533.11/x
  3. Step 3: Cross multiply
    18,013.59x = 27,020.39 × 5,533.11
  4. Step 4: Simplify right side
    18,013.59x = 149,506,762.45
  5. Step 5: Solve for x
    x = 149,506,762.45/18,013.59
  6. Step 6: Final answer
    x = 8,299.67

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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.