Home / 9,540.06-13,172.40-8,227.86

Finding the Fourth Proportional to 9,540.06, 13,172.40 and 8,227.86

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Solution

The fourth proportional to 9,540.06, 13,172.40 and 8,227.86 is: 11,360.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,540.06 : 13,172.40 = 8,227.86 : x
  2. Step 2: Convert to fraction form
    9,540.06/13,172.40 = 8,227.86/x
  3. Step 3: Cross multiply
    9,540.06x = 13,172.40 × 8,227.86
  4. Step 4: Simplify right side
    9,540.06x = 108,380,663.06
  5. Step 5: Solve for x
    x = 108,380,663.06/9,540.06
  6. Step 6: Final answer
    x = 11,360.59

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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.