Home / 12,178.26-18,272.61-5,943.78

Finding the Fourth Proportional to 12,178.26, 18,272.61 and 5,943.78

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Solution

The fourth proportional to 12,178.26, 18,272.61 and 5,943.78 is: 8,918.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,178.26 : 18,272.61 = 5,943.78 : x
  2. Step 2: Convert to fraction form
    12,178.26/18,272.61 = 5,943.78/x
  3. Step 3: Cross multiply
    12,178.26x = 18,272.61 × 5,943.78
  4. Step 4: Simplify right side
    12,178.26x = 108,608,373.87
  5. Step 5: Solve for x
    x = 108,608,373.87/12,178.26
  6. Step 6: Final answer
    x = 8,918.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.