Home / 8,124.48-12,180-3,738.24

Finding the Fourth Proportional to 8,124.48, 12,180 and 3,738.24

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Solution

The fourth proportional to 8,124.48, 12,180 and 3,738.24 is: 5,604.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,124.48 : 12,180 = 3,738.24 : x
  2. Step 2: Convert to fraction form
    8,124.48/12,180 = 3,738.24/x
  3. Step 3: Cross multiply
    8,124.48x = 12,180 × 3,738.24
  4. Step 4: Simplify right side
    8,124.48x = 45,531,763.20
  5. Step 5: Solve for x
    x = 45,531,763.20/8,124.48
  6. Step 6: Final answer
    x = 5,604.27

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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.