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Finding the Fourth Proportional to 19,398, 26,770.32 and 11,444.88

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Solution

The fourth proportional to 19,398, 26,770.32 and 11,444.88 is: 15,794.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,398 : 26,770.32 = 11,444.88 : x
  2. Step 2: Convert to fraction form
    19,398/26,770.32 = 11,444.88/x
  3. Step 3: Cross multiply
    19,398x = 26,770.32 × 11,444.88
  4. Step 4: Simplify right side
    19,398x = 306,383,099.96
  5. Step 5: Solve for x
    x = 306,383,099.96/19,398
  6. Step 6: Final answer
    x = 15,794.57

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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.