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Finding the Fourth Proportional to 11,519.74, 17,279 and 5,674.38

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Solution

The fourth proportional to 11,519.74, 17,279 and 5,674.38 is: 8,511.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,519.74 : 17,279 = 5,674.38 : x
  2. Step 2: Convert to fraction form
    11,519.74/17,279 = 5,674.38/x
  3. Step 3: Cross multiply
    11,519.74x = 17,279 × 5,674.38
  4. Step 4: Simplify right side
    11,519.74x = 98,047,612.02
  5. Step 5: Solve for x
    x = 98,047,612.02/11,519.74
  6. Step 6: Final answer
    x = 8,511.27

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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.