Home / 14,265.32-21,398.22-3,876.80

Finding the Fourth Proportional to 14,265.32, 21,398.22 and 3,876.80

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Solution

The fourth proportional to 14,265.32, 21,398.22 and 3,876.80 is: 5,815.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,265.32 : 21,398.22 = 3,876.80 : x
  2. Step 2: Convert to fraction form
    14,265.32/21,398.22 = 3,876.80/x
  3. Step 3: Cross multiply
    14,265.32x = 21,398.22 × 3,876.80
  4. Step 4: Simplify right side
    14,265.32x = 82,956,619.30
  5. Step 5: Solve for x
    x = 82,956,619.30/14,265.32
  6. Step 6: Final answer
    x = 5,815.27

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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.