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Finding the Fourth Proportional to 13,251.63, 19,876.23 and 4,485.54

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Solution

The fourth proportional to 13,251.63, 19,876.23 and 4,485.54 is: 6,727.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,251.63 : 19,876.23 = 4,485.54 : x
  2. Step 2: Convert to fraction form
    13,251.63/19,876.23 = 4,485.54/x
  3. Step 3: Cross multiply
    13,251.63x = 19,876.23 × 4,485.54
  4. Step 4: Simplify right side
    13,251.63x = 89,155,624.71
  5. Step 5: Solve for x
    x = 89,155,624.71/13,251.63
  6. Step 6: Final answer
    x = 6,727.90

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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.