Home / 8,086.36-12,126.96-3,154.80

Finding the Fourth Proportional to 8,086.36, 12,126.96 and 3,154.80

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Solution

The fourth proportional to 8,086.36, 12,126.96 and 3,154.80 is: 4,731.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,086.36 : 12,126.96 = 3,154.80 : x
  2. Step 2: Convert to fraction form
    8,086.36/12,126.96 = 3,154.80/x
  3. Step 3: Cross multiply
    8,086.36x = 12,126.96 × 3,154.80
  4. Step 4: Simplify right side
    8,086.36x = 38,258,133.41
  5. Step 5: Solve for x
    x = 38,258,133.41/8,086.36
  6. Step 6: Final answer
    x = 4,731.19

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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.