Home / 15,350.91-21,183.39-8,636.82

Finding the Fourth Proportional to 15,350.91, 21,183.39 and 8,636.82

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Solution

The fourth proportional to 15,350.91, 21,183.39 and 8,636.82 is: 11,918.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,350.91 : 21,183.39 = 8,636.82 : x
  2. Step 2: Convert to fraction form
    15,350.91/21,183.39 = 8,636.82/x
  3. Step 3: Cross multiply
    15,350.91x = 21,183.39 × 8,636.82
  4. Step 4: Simplify right side
    15,350.91x = 182,957,126.42
  5. Step 5: Solve for x
    x = 182,957,126.42/15,350.91
  6. Step 6: Final answer
    x = 11,918.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.