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Finding the Fourth Proportional to 9,366.06, 12,942.27 and 8,910.48

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Solution

The fourth proportional to 9,366.06, 12,942.27 and 8,910.48 is: 12,312.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,366.06 : 12,942.27 = 8,910.48 : x
  2. Step 2: Convert to fraction form
    9,366.06/12,942.27 = 8,910.48/x
  3. Step 3: Cross multiply
    9,366.06x = 12,942.27 × 8,910.48
  4. Step 4: Simplify right side
    9,366.06x = 115,321,837.99
  5. Step 5: Solve for x
    x = 115,321,837.99/9,366.06
  6. Step 6: Final answer
    x = 12,312.74

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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.