Home / 18,087.68-27,131.52-5,776.64

Finding the Fourth Proportional to 18,087.68, 27,131.52 and 5,776.64

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Solution

The fourth proportional to 18,087.68, 27,131.52 and 5,776.64 is: 8,664.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,087.68 : 27,131.52 = 5,776.64 : x
  2. Step 2: Convert to fraction form
    18,087.68/27,131.52 = 5,776.64/x
  3. Step 3: Cross multiply
    18,087.68x = 27,131.52 × 5,776.64
  4. Step 4: Simplify right side
    18,087.68x = 156,729,023.69
  5. Step 5: Solve for x
    x = 156,729,023.69/18,087.68
  6. Step 6: Final answer
    x = 8,664.96

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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.