Home / 9,803.28-13,516.20-8,188.86

Finding the Fourth Proportional to 9,803.28, 13,516.20 and 8,188.86

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Solution

The fourth proportional to 9,803.28, 13,516.20 and 8,188.86 is: 11,290.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,803.28 : 13,516.20 = 8,188.86 : x
  2. Step 2: Convert to fraction form
    9,803.28/13,516.20 = 8,188.86/x
  3. Step 3: Cross multiply
    9,803.28x = 13,516.20 × 8,188.86
  4. Step 4: Simplify right side
    9,803.28x = 110,682,269.53
  5. Step 5: Solve for x
    x = 110,682,269.53/9,803.28
  6. Step 6: Final answer
    x = 11,290.33

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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.