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Finding the Fourth Proportional to 16,892, 23,310.56 and 9,338.08

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Solution

The fourth proportional to 16,892, 23,310.56 and 9,338.08 is: 12,886.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,892 : 23,310.56 = 9,338.08 : x
  2. Step 2: Convert to fraction form
    16,892/23,310.56 = 9,338.08/x
  3. Step 3: Cross multiply
    16,892x = 23,310.56 × 9,338.08
  4. Step 4: Simplify right side
    16,892x = 217,675,874.12
  5. Step 5: Solve for x
    x = 217,675,874.12/16,892
  6. Step 6: Final answer
    x = 12,886.33

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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.