Home / 9,120.82-13,654.57-8,245.33

Finding the Fourth Proportional to 9,120.82, 13,654.57 and 8,245.33

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Solution

The fourth proportional to 9,120.82, 13,654.57 and 8,245.33 is: 12,343.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,120.82 : 13,654.57 = 8,245.33 : x
  2. Step 2: Convert to fraction form
    9,120.82/13,654.57 = 8,245.33/x
  3. Step 3: Cross multiply
    9,120.82x = 13,654.57 × 8,245.33
  4. Step 4: Simplify right side
    9,120.82x = 112,586,448.18
  5. Step 5: Solve for x
    x = 112,586,448.18/9,120.82
  6. Step 6: Final answer
    x = 12,343.90

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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.