Home / 8,195.40-12,278.70-6,726.60

Finding the Fourth Proportional to 8,195.40, 12,278.70 and 6,726.60

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Solution

The fourth proportional to 8,195.40, 12,278.70 and 6,726.60 is: 10,078.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,195.40 : 12,278.70 = 6,726.60 : x
  2. Step 2: Convert to fraction form
    8,195.40/12,278.70 = 6,726.60/x
  3. Step 3: Cross multiply
    8,195.40x = 12,278.70 × 6,726.60
  4. Step 4: Simplify right side
    8,195.40x = 82,593,903.42
  5. Step 5: Solve for x
    x = 82,593,903.42/8,195.40
  6. Step 6: Final answer
    x = 10,078.08

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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.