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Finding the Fourth Proportional to 11,293.39, 16,956.49 and 8,340.94

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Solution

The fourth proportional to 11,293.39, 16,956.49 and 8,340.94 is: 12,523.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,293.39 : 16,956.49 = 8,340.94 : x
  2. Step 2: Convert to fraction form
    11,293.39/16,956.49 = 8,340.94/x
  3. Step 3: Cross multiply
    11,293.39x = 16,956.49 × 8,340.94
  4. Step 4: Simplify right side
    11,293.39x = 141,433,065.70
  5. Step 5: Solve for x
    x = 141,433,065.70/11,293.39
  6. Step 6: Final answer
    x = 12,523.53

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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.