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Finding the Fourth Proportional to 8,329.62, 11,489.59 and 6,335.81

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Solution

The fourth proportional to 8,329.62, 11,489.59 and 6,335.81 is: 8,739.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,329.62 : 11,489.59 = 6,335.81 : x
  2. Step 2: Convert to fraction form
    8,329.62/11,489.59 = 6,335.81/x
  3. Step 3: Cross multiply
    8,329.62x = 11,489.59 × 6,335.81
  4. Step 4: Simplify right side
    8,329.62x = 72,795,859.22
  5. Step 5: Solve for x
    x = 72,795,859.22/8,329.62
  6. Step 6: Final answer
    x = 8,739.40

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Half scale
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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.