Home / 18,745.48-25,872.36-12,039.58

Finding the Fourth Proportional to 18,745.48, 25,872.36 and 12,039.58

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Solution

The fourth proportional to 18,745.48, 25,872.36 and 12,039.58 is: 16,616.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,745.48 : 25,872.36 = 12,039.58 : x
  2. Step 2: Convert to fraction form
    18,745.48/25,872.36 = 12,039.58/x
  3. Step 3: Cross multiply
    18,745.48x = 25,872.36 × 12,039.58
  4. Step 4: Simplify right side
    18,745.48x = 311,492,348.01
  5. Step 5: Solve for x
    x = 311,492,348.01/18,745.48
  6. Step 6: Final answer
    x = 16,616.93

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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.