Home / 8,127.60-12,196.80-3,742.80

Finding the Fourth Proportional to 8,127.60, 12,196.80 and 3,742.80

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Solution

The fourth proportional to 8,127.60, 12,196.80 and 3,742.80 is: 5,616.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,127.60 : 12,196.80 = 3,742.80 : x
  2. Step 2: Convert to fraction form
    8,127.60/12,196.80 = 3,742.80/x
  3. Step 3: Cross multiply
    8,127.60x = 12,196.80 × 3,742.80
  4. Step 4: Simplify right side
    8,127.60x = 45,650,183.04
  5. Step 5: Solve for x
    x = 45,650,183.04/8,127.60
  6. Step 6: Final answer
    x = 5,616.69

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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.