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Finding the Fourth Proportional to 13,324.56, 19,984.96 and 8,379.12

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Solution

The fourth proportional to 13,324.56, 19,984.96 and 8,379.12 is: 12,567.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,324.56 : 19,984.96 = 8,379.12 : x
  2. Step 2: Convert to fraction form
    13,324.56/19,984.96 = 8,379.12/x
  3. Step 3: Cross multiply
    13,324.56x = 19,984.96 × 8,379.12
  4. Step 4: Simplify right side
    13,324.56x = 167,456,378.04
  5. Step 5: Solve for x
    x = 167,456,378.04/13,324.56
  6. Step 6: Final answer
    x = 12,567.50

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.