Home / 13,160.88-18,163.19-7,494.39

Finding the Fourth Proportional to 13,160.88, 18,163.19 and 7,494.39

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Solution

The fourth proportional to 13,160.88, 18,163.19 and 7,494.39 is: 10,342.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,160.88 : 18,163.19 = 7,494.39 : x
  2. Step 2: Convert to fraction form
    13,160.88/18,163.19 = 7,494.39/x
  3. Step 3: Cross multiply
    13,160.88x = 18,163.19 × 7,494.39
  4. Step 4: Simplify right side
    13,160.88x = 136,121,992.03
  5. Step 5: Solve for x
    x = 136,121,992.03/13,160.88
  6. Step 6: Final answer
    x = 10,342.92

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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.