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Finding the Fourth Proportional to 6,609.34, 9,913.92 and 1,992.34

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Solution

The fourth proportional to 6,609.34, 9,913.92 and 1,992.34 is: 2,988.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,609.34 : 9,913.92 = 1,992.34 : x
  2. Step 2: Convert to fraction form
    6,609.34/9,913.92 = 1,992.34/x
  3. Step 3: Cross multiply
    6,609.34x = 9,913.92 × 1,992.34
  4. Step 4: Simplify right side
    6,609.34x = 19,751,899.37
  5. Step 5: Solve for x
    x = 19,751,899.37/6,609.34
  6. Step 6: Final answer
    x = 2,988.48

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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.