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Finding the Fourth Proportional to 15,455.34, 23,184.87 and 5,458.03

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Solution

The fourth proportional to 15,455.34, 23,184.87 and 5,458.03 is: 8,187.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,455.34 : 23,184.87 = 5,458.03 : x
  2. Step 2: Convert to fraction form
    15,455.34/23,184.87 = 5,458.03/x
  3. Step 3: Cross multiply
    15,455.34x = 23,184.87 × 5,458.03
  4. Step 4: Simplify right side
    15,455.34x = 126,543,767.99
  5. Step 5: Solve for x
    x = 126,543,767.99/15,455.34
  6. Step 6: Final answer
    x = 8,187.71

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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.