Home / 18,745.73-25,869.89-10,787.97

Finding the Fourth Proportional to 18,745.73, 25,869.89 and 10,787.97

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Solution

The fourth proportional to 18,745.73, 25,869.89 and 10,787.97 is: 14,887.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,745.73 : 25,869.89 = 10,787.97 : x
  2. Step 2: Convert to fraction form
    18,745.73/25,869.89 = 10,787.97/x
  3. Step 3: Cross multiply
    18,745.73x = 25,869.89 × 10,787.97
  4. Step 4: Simplify right side
    18,745.73x = 279,083,543.28
  5. Step 5: Solve for x
    x = 279,083,543.28/18,745.73
  6. Step 6: Final answer
    x = 14,887.85

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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.