Home / 11,778.32-17,654.33-5,107.12

Finding the Fourth Proportional to 11,778.32, 17,654.33 and 5,107.12

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Solution

The fourth proportional to 11,778.32, 17,654.33 and 5,107.12 is: 7,654.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,778.32 : 17,654.33 = 5,107.12 : x
  2. Step 2: Convert to fraction form
    11,778.32/17,654.33 = 5,107.12/x
  3. Step 3: Cross multiply
    11,778.32x = 17,654.33 × 5,107.12
  4. Step 4: Simplify right side
    11,778.32x = 90,162,668.02
  5. Step 5: Solve for x
    x = 90,162,668.02/11,778.32
  6. Step 6: Final answer
    x = 7,654.97

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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.