Home / 11,647.20-17,436.42-7,691.16

Finding the Fourth Proportional to 11,647.20, 17,436.42 and 7,691.16

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Solution

The fourth proportional to 11,647.20, 17,436.42 and 7,691.16 is: 11,514.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,647.20 : 17,436.42 = 7,691.16 : x
  2. Step 2: Convert to fraction form
    11,647.20/17,436.42 = 7,691.16/x
  3. Step 3: Cross multiply
    11,647.20x = 17,436.42 × 7,691.16
  4. Step 4: Simplify right side
    11,647.20x = 134,106,296.05
  5. Step 5: Solve for x
    x = 134,106,296.05/11,647.20
  6. Step 6: Final answer
    x = 11,514.04

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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.