Home / 11,257.72-15,537.18-8,458.36

Finding the Fourth Proportional to 11,257.72, 15,537.18 and 8,458.36

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Solution

The fourth proportional to 11,257.72, 15,537.18 and 8,458.36 is: 11,673.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,257.72 : 15,537.18 = 8,458.36 : x
  2. Step 2: Convert to fraction form
    11,257.72/15,537.18 = 8,458.36/x
  3. Step 3: Cross multiply
    11,257.72x = 15,537.18 × 8,458.36
  4. Step 4: Simplify right side
    11,257.72x = 131,419,061.82
  5. Step 5: Solve for x
    x = 131,419,061.82/11,257.72
  6. Step 6: Final answer
    x = 11,673.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.