Home / 11,211.62-15,359.99-10,791.23

Finding the Fourth Proportional to 11,211.62, 15,359.99 and 10,791.23

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Solution

The fourth proportional to 11,211.62, 15,359.99 and 10,791.23 is: 14,784.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,211.62 : 15,359.99 = 10,791.23 : x
  2. Step 2: Convert to fraction form
    11,211.62/15,359.99 = 10,791.23/x
  3. Step 3: Cross multiply
    11,211.62x = 15,359.99 × 10,791.23
  4. Step 4: Simplify right side
    11,211.62x = 165,753,084.48
  5. Step 5: Solve for x
    x = 165,753,084.48/11,211.62
  6. Step 6: Final answer
    x = 14,784.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.