Home / 12,517.45-18,778.91-3,632.90

Finding the Fourth Proportional to 12,517.45, 18,778.91 and 3,632.90

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Solution

The fourth proportional to 12,517.45, 18,778.91 and 3,632.90 is: 5,450.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,517.45 : 18,778.91 = 3,632.90 : x
  2. Step 2: Convert to fraction form
    12,517.45/18,778.91 = 3,632.90/x
  3. Step 3: Cross multiply
    12,517.45x = 18,778.91 × 3,632.90
  4. Step 4: Simplify right side
    12,517.45x = 68,221,848.27
  5. Step 5: Solve for x
    x = 68,221,848.27/12,517.45
  6. Step 6: Final answer
    x = 5,450.14

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1.5x scale

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.