Home / 8,111.24-12,161.28-4,152.80

Finding the Fourth Proportional to 8,111.24, 12,161.28 and 4,152.80

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Solution

The fourth proportional to 8,111.24, 12,161.28 and 4,152.80 is: 6,226.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,111.24 : 12,161.28 = 4,152.80 : x
  2. Step 2: Convert to fraction form
    8,111.24/12,161.28 = 4,152.80/x
  3. Step 3: Cross multiply
    8,111.24x = 12,161.28 × 4,152.80
  4. Step 4: Simplify right side
    8,111.24x = 50,503,363.58
  5. Step 5: Solve for x
    x = 50,503,363.58/8,111.24
  6. Step 6: Final answer
    x = 6,226.34

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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.