Home / 18,745.18-25,868.49-10,247.20

Finding the Fourth Proportional to 18,745.18, 25,868.49 and 10,247.20

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Solution

The fourth proportional to 18,745.18, 25,868.49 and 10,247.20 is: 14,141.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,745.18 : 25,868.49 = 10,247.20 : x
  2. Step 2: Convert to fraction form
    18,745.18/25,868.49 = 10,247.20/x
  3. Step 3: Cross multiply
    18,745.18x = 25,868.49 × 10,247.20
  4. Step 4: Simplify right side
    18,745.18x = 265,079,590.73
  5. Step 5: Solve for x
    x = 265,079,590.73/18,745.18
  6. Step 6: Final answer
    x = 14,141.21

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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.