Home / 36,086.88-54,116.84-12,387.70

Finding the Fourth Proportional to 36,086.88, 54,116.84 and 12,387.70

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Solution

The fourth proportional to 36,086.88, 54,116.84 and 12,387.70 is: 18,576.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,086.88 : 54,116.84 = 12,387.70 : x
  2. Step 2: Convert to fraction form
    36,086.88/54,116.84 = 12,387.70/x
  3. Step 3: Cross multiply
    36,086.88x = 54,116.84 × 12,387.70
  4. Step 4: Simplify right side
    36,086.88x = 670,383,277.48
  5. Step 5: Solve for x
    x = 670,383,277.48/36,086.88
  6. Step 6: Final answer
    x = 18,576.92

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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.