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Finding the Fourth Proportional to 11,863.71, 16,375.81 and 8,327.79

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Solution

The fourth proportional to 11,863.71, 16,375.81 and 8,327.79 is: 11,495.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,863.71 : 16,375.81 = 8,327.79 : x
  2. Step 2: Convert to fraction form
    11,863.71/16,375.81 = 8,327.79/x
  3. Step 3: Cross multiply
    11,863.71x = 16,375.81 × 8,327.79
  4. Step 4: Simplify right side
    11,863.71x = 136,374,368.52
  5. Step 5: Solve for x
    x = 136,374,368.52/11,863.71
  6. Step 6: Final answer
    x = 11,495.08

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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.