Home / 18,112.49-27,168.43-4,964.87

Finding the Fourth Proportional to 18,112.49, 27,168.43 and 4,964.87

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Solution

The fourth proportional to 18,112.49, 27,168.43 and 4,964.87 is: 7,447.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,112.49 : 27,168.43 = 4,964.87 : x
  2. Step 2: Convert to fraction form
    18,112.49/27,168.43 = 4,964.87/x
  3. Step 3: Cross multiply
    18,112.49x = 27,168.43 × 4,964.87
  4. Step 4: Simplify right side
    18,112.49x = 134,887,587.21
  5. Step 5: Solve for x
    x = 134,887,587.21/18,112.49
  6. Step 6: Final answer
    x = 7,447.21

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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.