Home / 8,118.16-12,177.24-3,738.80

Finding the Fourth Proportional to 8,118.16, 12,177.24 and 3,738.80

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Solution

The fourth proportional to 8,118.16, 12,177.24 and 3,738.80 is: 5,608.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,118.16 : 12,177.24 = 3,738.80 : x
  2. Step 2: Convert to fraction form
    8,118.16/12,177.24 = 3,738.80/x
  3. Step 3: Cross multiply
    8,118.16x = 12,177.24 × 3,738.80
  4. Step 4: Simplify right side
    8,118.16x = 45,528,264.91
  5. Step 5: Solve for x
    x = 45,528,264.91/8,118.16
  6. Step 6: Final answer
    x = 5,608.20

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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.