Home / 19,187.97-28,787.70-11,597.72

Finding the Fourth Proportional to 19,187.97, 28,787.70 and 11,597.72

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Solution

The fourth proportional to 19,187.97, 28,787.70 and 11,597.72 is: 17,400.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,187.97 : 28,787.70 = 11,597.72 : x
  2. Step 2: Convert to fraction form
    19,187.97/28,787.70 = 11,597.72/x
  3. Step 3: Cross multiply
    19,187.97x = 28,787.70 × 11,597.72
  4. Step 4: Simplify right side
    19,187.97x = 333,871,540.11
  5. Step 5: Solve for x
    x = 333,871,540.11/19,187.97
  6. Step 6: Final answer
    x = 17,400.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.