Home / 11,758.91-17,638.62-5,515.48

Finding the Fourth Proportional to 11,758.91, 17,638.62 and 5,515.48

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Solution

The fourth proportional to 11,758.91, 17,638.62 and 5,515.48 is: 8,273.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,758.91 : 17,638.62 = 5,515.48 : x
  2. Step 2: Convert to fraction form
    11,758.91/17,638.62 = 5,515.48/x
  3. Step 3: Cross multiply
    11,758.91x = 17,638.62 × 5,515.48
  4. Step 4: Simplify right side
    11,758.91x = 97,285,340.07
  5. Step 5: Solve for x
    x = 97,285,340.07/11,758.91
  6. Step 6: Final answer
    x = 8,273.33

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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.