Home / 18,142.22-27,201.36-8,763.68

Finding the Fourth Proportional to 18,142.22, 27,201.36 and 8,763.68

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Solution

The fourth proportional to 18,142.22, 27,201.36 and 8,763.68 is: 13,139.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,142.22 : 27,201.36 = 8,763.68 : x
  2. Step 2: Convert to fraction form
    18,142.22/27,201.36 = 8,763.68/x
  3. Step 3: Cross multiply
    18,142.22x = 27,201.36 × 8,763.68
  4. Step 4: Simplify right side
    18,142.22x = 238,384,014.60
  5. Step 5: Solve for x
    x = 238,384,014.60/18,142.22
  6. Step 6: Final answer
    x = 13,139.74

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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.