Home / 14,546.40-21,819.66-5,781.29

Finding the Fourth Proportional to 14,546.40, 21,819.66 and 5,781.29

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Solution

The fourth proportional to 14,546.40, 21,819.66 and 5,781.29 is: 8,671.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,546.40 : 21,819.66 = 5,781.29 : x
  2. Step 2: Convert to fraction form
    14,546.40/21,819.66 = 5,781.29/x
  3. Step 3: Cross multiply
    14,546.40x = 21,819.66 × 5,781.29
  4. Step 4: Simplify right side
    14,546.40x = 126,145,673.06
  5. Step 5: Solve for x
    x = 126,145,673.06/14,546.40
  6. Step 6: Final answer
    x = 8,671.95

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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.