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Finding the Fourth Proportional to 11,867.00, 16,383 and 8,881.74

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Solution

The fourth proportional to 11,867.00, 16,383 and 8,881.74 is: 12,261.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,867.00 : 16,383 = 8,881.74 : x
  2. Step 2: Convert to fraction form
    11,867.00/16,383 = 8,881.74/x
  3. Step 3: Cross multiply
    11,867.00x = 16,383 × 8,881.74
  4. Step 4: Simplify right side
    11,867.00x = 145,509,546.42
  5. Step 5: Solve for x
    x = 145,509,546.42/11,867.00
  6. Step 6: Final answer
    x = 12,261.70

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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.