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Finding the Fourth Proportional to 9,321.69, 12,847.03 and 6,799.76

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Solution

The fourth proportional to 9,321.69, 12,847.03 and 6,799.76 is: 9,371.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,321.69 : 12,847.03 = 6,799.76 : x
  2. Step 2: Convert to fraction form
    9,321.69/12,847.03 = 6,799.76/x
  3. Step 3: Cross multiply
    9,321.69x = 12,847.03 × 6,799.76
  4. Step 4: Simplify right side
    9,321.69x = 87,356,639.48
  5. Step 5: Solve for x
    x = 87,356,639.48/9,321.69
  6. Step 6: Final answer
    x = 9,371.33

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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.