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Finding the Fourth Proportional to 8,573.23, 11,835.37 and 8,115.38

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Solution

The fourth proportional to 8,573.23, 11,835.37 and 8,115.38 is: 11,203.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,573.23 : 11,835.37 = 8,115.38 : x
  2. Step 2: Convert to fraction form
    8,573.23/11,835.37 = 8,115.38/x
  3. Step 3: Cross multiply
    8,573.23x = 11,835.37 × 8,115.38
  4. Step 4: Simplify right side
    8,573.23x = 96,048,524.99
  5. Step 5: Solve for x
    x = 96,048,524.99/8,573.23
  6. Step 6: Final answer
    x = 11,203.31

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Half scale
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Double scale
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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.