Home / 12,505.11-17,249.49-8,256.18

Finding the Fourth Proportional to 12,505.11, 17,249.49 and 8,256.18

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Solution

The fourth proportional to 12,505.11, 17,249.49 and 8,256.18 is: 11,388.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,505.11 : 17,249.49 = 8,256.18 : x
  2. Step 2: Convert to fraction form
    12,505.11/17,249.49 = 8,256.18/x
  3. Step 3: Cross multiply
    12,505.11x = 17,249.49 × 8,256.18
  4. Step 4: Simplify right side
    12,505.11x = 142,414,894.35
  5. Step 5: Solve for x
    x = 142,414,894.35/12,505.11
  6. Step 6: Final answer
    x = 11,388.54

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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.