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Finding the Fourth Proportional to 15,195.00, 20,970.15 and 8,481.93

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Solution

The fourth proportional to 15,195.00, 20,970.15 and 8,481.93 is: 11,705.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,195.00 : 20,970.15 = 8,481.93 : x
  2. Step 2: Convert to fraction form
    15,195.00/20,970.15 = 8,481.93/x
  3. Step 3: Cross multiply
    15,195.00x = 20,970.15 × 8,481.93
  4. Step 4: Simplify right side
    15,195.00x = 177,867,249.55
  5. Step 5: Solve for x
    x = 177,867,249.55/15,195.00
  6. Step 6: Final answer
    x = 11,705.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.