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Finding the Fourth Proportional to 8,336.59, 12,497.58 and 3,138.82

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Solution

The fourth proportional to 8,336.59, 12,497.58 and 3,138.82 is: 4,705.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,336.59 : 12,497.58 = 3,138.82 : x
  2. Step 2: Convert to fraction form
    8,336.59/12,497.58 = 3,138.82/x
  3. Step 3: Cross multiply
    8,336.59x = 12,497.58 × 3,138.82
  4. Step 4: Simplify right side
    8,336.59x = 39,227,654.06
  5. Step 5: Solve for x
    x = 39,227,654.06/8,336.59
  6. Step 6: Final answer
    x = 4,705.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.