Home / 13,101.05-18,076.64-7,794.83

Finding the Fourth Proportional to 13,101.05, 18,076.64 and 7,794.83

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Solution

The fourth proportional to 13,101.05, 18,076.64 and 7,794.83 is: 10,755.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,101.05 : 18,076.64 = 7,794.83 : x
  2. Step 2: Convert to fraction form
    13,101.05/18,076.64 = 7,794.83/x
  3. Step 3: Cross multiply
    13,101.05x = 18,076.64 × 7,794.83
  4. Step 4: Simplify right side
    13,101.05x = 140,904,335.77
  5. Step 5: Solve for x
    x = 140,904,335.77/13,101.05
  6. Step 6: Final answer
    x = 10,755.19

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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.