Home / 11,518.35-15,896.85-8,542.68

Finding the Fourth Proportional to 11,518.35, 15,896.85 and 8,542.68

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Solution

The fourth proportional to 11,518.35, 15,896.85 and 8,542.68 is: 11,790.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,518.35 : 15,896.85 = 8,542.68 : x
  2. Step 2: Convert to fraction form
    11,518.35/15,896.85 = 8,542.68/x
  3. Step 3: Cross multiply
    11,518.35x = 15,896.85 × 8,542.68
  4. Step 4: Simplify right side
    11,518.35x = 135,801,702.56
  5. Step 5: Solve for x
    x = 135,801,702.56/11,518.35
  6. Step 6: Final answer
    x = 11,790.03

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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.