Home / 18,745.41-25,869.45-10,787.66

Finding the Fourth Proportional to 18,745.41, 25,869.45 and 10,787.66

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Solution

The fourth proportional to 18,745.41, 25,869.45 and 10,787.66 is: 14,887.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,745.41 : 25,869.45 = 10,787.66 : x
  2. Step 2: Convert to fraction form
    18,745.41/25,869.45 = 10,787.66/x
  3. Step 3: Cross multiply
    18,745.41x = 25,869.45 × 10,787.66
  4. Step 4: Simplify right side
    18,745.41x = 279,070,830.99
  5. Step 5: Solve for x
    x = 279,070,830.99/18,745.41
  6. Step 6: Final answer
    x = 14,887.42

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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.