Home / 11,184.26-16,776.32-8,720.88

Finding the Fourth Proportional to 11,184.26, 16,776.32 and 8,720.88

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Solution

The fourth proportional to 11,184.26, 16,776.32 and 8,720.88 is: 13,081.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,184.26 : 16,776.32 = 8,720.88 : x
  2. Step 2: Convert to fraction form
    11,184.26/16,776.32 = 8,720.88/x
  3. Step 3: Cross multiply
    11,184.26x = 16,776.32 × 8,720.88
  4. Step 4: Simplify right side
    11,184.26x = 146,304,273.56
  5. Step 5: Solve for x
    x = 146,304,273.56/11,184.26
  6. Step 6: Final answer
    x = 13,081.27

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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.