Home / 12,244.89-18,357.30-3,919.71

Finding the Fourth Proportional to 12,244.89, 18,357.30 and 3,919.71

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Solution

The fourth proportional to 12,244.89, 18,357.30 and 3,919.71 is: 5,876.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,244.89 : 18,357.30 = 3,919.71 : x
  2. Step 2: Convert to fraction form
    12,244.89/18,357.30 = 3,919.71/x
  3. Step 3: Cross multiply
    12,244.89x = 18,357.30 × 3,919.71
  4. Step 4: Simplify right side
    12,244.89x = 71,955,292.38
  5. Step 5: Solve for x
    x = 71,955,292.38/12,244.89
  6. Step 6: Final answer
    x = 5,876.35

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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.