Home / 13,414.19-18,512.06-8,105.93

Finding the Fourth Proportional to 13,414.19, 18,512.06 and 8,105.93

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Solution

The fourth proportional to 13,414.19, 18,512.06 and 8,105.93 is: 11,186.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,414.19 : 18,512.06 = 8,105.93 : x
  2. Step 2: Convert to fraction form
    13,414.19/18,512.06 = 8,105.93/x
  3. Step 3: Cross multiply
    13,414.19x = 18,512.06 × 8,105.93
  4. Step 4: Simplify right side
    13,414.19x = 150,057,462.52
  5. Step 5: Solve for x
    x = 150,057,462.52/13,414.19
  6. Step 6: Final answer
    x = 11,186.47

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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.