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Finding the Fourth Proportional to 11,216.88, 15,456.02 and 8,375.00

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Solution

The fourth proportional to 11,216.88, 15,456.02 and 8,375.00 is: 11,540.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,216.88 : 15,456.02 = 8,375.00 : x
  2. Step 2: Convert to fraction form
    11,216.88/15,456.02 = 8,375.00/x
  3. Step 3: Cross multiply
    11,216.88x = 15,456.02 × 8,375.00
  4. Step 4: Simplify right side
    11,216.88x = 129,444,048.34
  5. Step 5: Solve for x
    x = 129,444,048.34/11,216.88
  6. Step 6: Final answer
    x = 11,540.11

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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.