Home / 15,214.44-20,995.20-8,499.96

Finding the Fourth Proportional to 15,214.44, 20,995.20 and 8,499.96

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Solution

The fourth proportional to 15,214.44, 20,995.20 and 8,499.96 is: 11,729.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,214.44 : 20,995.20 = 8,499.96 : x
  2. Step 2: Convert to fraction form
    15,214.44/20,995.20 = 8,499.96/x
  3. Step 3: Cross multiply
    15,214.44x = 20,995.20 × 8,499.96
  4. Step 4: Simplify right side
    15,214.44x = 178,458,360.19
  5. Step 5: Solve for x
    x = 178,458,360.19/15,214.44
  6. Step 6: Final answer
    x = 11,729.54

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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.