Home / 13,824.71-20,648.94-12,506.43

Finding the Fourth Proportional to 13,824.71, 20,648.94 and 12,506.43

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Solution

The fourth proportional to 13,824.71, 20,648.94 and 12,506.43 is: 18,679.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,824.71 : 20,648.94 = 12,506.43 : x
  2. Step 2: Convert to fraction form
    13,824.71/20,648.94 = 12,506.43/x
  3. Step 3: Cross multiply
    13,824.71x = 20,648.94 × 12,506.43
  4. Step 4: Simplify right side
    13,824.71x = 258,244,522.68
  5. Step 5: Solve for x
    x = 258,244,522.68/13,824.71
  6. Step 6: Final answer
    x = 18,679.93

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.