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Finding the Fourth Proportional to 8,910.25, 12,274.74 and 7,493.97

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Solution

The fourth proportional to 8,910.25, 12,274.74 and 7,493.97 is: 10,323.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,910.25 : 12,274.74 = 7,493.97 : x
  2. Step 2: Convert to fraction form
    8,910.25/12,274.74 = 7,493.97/x
  3. Step 3: Cross multiply
    8,910.25x = 12,274.74 × 7,493.97
  4. Step 4: Simplify right side
    8,910.25x = 91,986,510.30
  5. Step 5: Solve for x
    x = 91,986,510.30/8,910.25
  6. Step 6: Final answer
    x = 10,323.67

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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.