Home / 12,441.64-18,664.98-4,122.28

Finding the Fourth Proportional to 12,441.64, 18,664.98 and 4,122.28

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Solution

The fourth proportional to 12,441.64, 18,664.98 and 4,122.28 is: 6,184.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,441.64 : 18,664.98 = 4,122.28 : x
  2. Step 2: Convert to fraction form
    12,441.64/18,664.98 = 4,122.28/x
  3. Step 3: Cross multiply
    12,441.64x = 18,664.98 × 4,122.28
  4. Step 4: Simplify right side
    12,441.64x = 76,942,273.75
  5. Step 5: Solve for x
    x = 76,942,273.75/12,441.64
  6. Step 6: Final answer
    x = 6,184.25

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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.