Home / 12,087.48-18,131.28-3,322.38

Finding the Fourth Proportional to 12,087.48, 18,131.28 and 3,322.38

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Solution

The fourth proportional to 12,087.48, 18,131.28 and 3,322.38 is: 4,983.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,087.48 : 18,131.28 = 3,322.38 : x
  2. Step 2: Convert to fraction form
    12,087.48/18,131.28 = 3,322.38/x
  3. Step 3: Cross multiply
    12,087.48x = 18,131.28 × 3,322.38
  4. Step 4: Simplify right side
    12,087.48x = 60,239,002.05
  5. Step 5: Solve for x
    x = 60,239,002.05/12,087.48
  6. Step 6: Final answer
    x = 4,983.59

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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.