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Finding the Fourth Proportional to 8,660.82, 11,958.33 and 5,308.21

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Solution

The fourth proportional to 8,660.82, 11,958.33 and 5,308.21 is: 7,329.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,660.82 : 11,958.33 = 5,308.21 : x
  2. Step 2: Convert to fraction form
    8,660.82/11,958.33 = 5,308.21/x
  3. Step 3: Cross multiply
    8,660.82x = 11,958.33 × 5,308.21
  4. Step 4: Simplify right side
    8,660.82x = 63,477,300.35
  5. Step 5: Solve for x
    x = 63,477,300.35/8,660.82
  6. Step 6: Final answer
    x = 7,329.25

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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.