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Finding the Fourth Proportional to 19,328, 26,674.32 and 12,251.84

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Solution

The fourth proportional to 19,328, 26,674.32 and 12,251.84 is: 16,908.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,328 : 26,674.32 = 12,251.84 : x
  2. Step 2: Convert to fraction form
    19,328/26,674.32 = 12,251.84/x
  3. Step 3: Cross multiply
    19,328x = 26,674.32 × 12,251.84
  4. Step 4: Simplify right side
    19,328x = 326,809,500.75
  5. Step 5: Solve for x
    x = 326,809,500.75/19,328
  6. Step 6: Final answer
    x = 16,908.60

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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.