Home / 7,835.82-11,753.64-1,992.12

Finding the Fourth Proportional to 7,835.82, 11,753.64 and 1,992.12

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Solution

The fourth proportional to 7,835.82, 11,753.64 and 1,992.12 is: 2,988.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,835.82 : 11,753.64 = 1,992.12 : x
  2. Step 2: Convert to fraction form
    7,835.82/11,753.64 = 1,992.12/x
  3. Step 3: Cross multiply
    7,835.82x = 11,753.64 × 1,992.12
  4. Step 4: Simplify right side
    7,835.82x = 23,414,661.32
  5. Step 5: Solve for x
    x = 23,414,661.32/7,835.82
  6. Step 6: Final answer
    x = 2,988.16

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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.