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Finding the Fourth Proportional to 11,883.73, 16,394.39 and 7,165.39

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Solution

The fourth proportional to 11,883.73, 16,394.39 and 7,165.39 is: 9,885.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,883.73 : 16,394.39 = 7,165.39 : x
  2. Step 2: Convert to fraction form
    11,883.73/16,394.39 = 7,165.39/x
  3. Step 3: Cross multiply
    11,883.73x = 16,394.39 × 7,165.39
  4. Step 4: Simplify right side
    11,883.73x = 117,472,134.10
  5. Step 5: Solve for x
    x = 117,472,134.10/11,883.73
  6. Step 6: Final answer
    x = 9,885.13

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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.