Home / 13,863.05-19,129.92-7,893.55

Finding the Fourth Proportional to 13,863.05, 19,129.92 and 7,893.55

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Solution

The fourth proportional to 13,863.05, 19,129.92 and 7,893.55 is: 10,892.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,863.05 : 19,129.92 = 7,893.55 : x
  2. Step 2: Convert to fraction form
    13,863.05/19,129.92 = 7,893.55/x
  3. Step 3: Cross multiply
    13,863.05x = 19,129.92 × 7,893.55
  4. Step 4: Simplify right side
    13,863.05x = 151,003,018.73
  5. Step 5: Solve for x
    x = 151,003,018.73/13,863.05
  6. Step 6: Final answer
    x = 10,892.48

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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.