Home / 12,079.94-18,122.40-4,684.37

Finding the Fourth Proportional to 12,079.94, 18,122.40 and 4,684.37

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Solution

The fourth proportional to 12,079.94, 18,122.40 and 4,684.37 is: 7,027.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,079.94 : 18,122.40 = 4,684.37 : x
  2. Step 2: Convert to fraction form
    12,079.94/18,122.40 = 4,684.37/x
  3. Step 3: Cross multiply
    12,079.94x = 18,122.40 × 4,684.37
  4. Step 4: Simplify right side
    12,079.94x = 84,891,936.28
  5. Step 5: Solve for x
    x = 84,891,936.28/12,079.94
  6. Step 6: Final answer
    x = 7,027.52

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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.