Home / 13,179.88-18,190.39-7,594.12

Finding the Fourth Proportional to 13,179.88, 18,190.39 and 7,594.12

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Solution

The fourth proportional to 13,179.88, 18,190.39 and 7,594.12 is: 10,481.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,179.88 : 18,190.39 = 7,594.12 : x
  2. Step 2: Convert to fraction form
    13,179.88/18,190.39 = 7,594.12/x
  3. Step 3: Cross multiply
    13,179.88x = 18,190.39 × 7,594.12
  4. Step 4: Simplify right side
    13,179.88x = 138,139,913.55
  5. Step 5: Solve for x
    x = 138,139,913.55/13,179.88
  6. Step 6: Final answer
    x = 10,481.12

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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.