Home / 11,239.72-15,494.69-8,845.54

Finding the Fourth Proportional to 11,239.72, 15,494.69 and 8,845.54

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Solution

The fourth proportional to 11,239.72, 15,494.69 and 8,845.54 is: 12,194.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,239.72 : 15,494.69 = 8,845.54 : x
  2. Step 2: Convert to fraction form
    11,239.72/15,494.69 = 8,845.54/x
  3. Step 3: Cross multiply
    11,239.72x = 15,494.69 × 8,845.54
  4. Step 4: Simplify right side
    11,239.72x = 137,058,778.48
  5. Step 5: Solve for x
    x = 137,058,778.48/11,239.72
  6. Step 6: Final answer
    x = 12,194.15

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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.