Home / 14,257.43-21,385.79-3,868.91

Finding the Fourth Proportional to 14,257.43, 21,385.79 and 3,868.91

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Solution

The fourth proportional to 14,257.43, 21,385.79 and 3,868.91 is: 5,803.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,257.43 : 21,385.79 = 3,868.91 : x
  2. Step 2: Convert to fraction form
    14,257.43/21,385.79 = 3,868.91/x
  3. Step 3: Cross multiply
    14,257.43x = 21,385.79 × 3,868.91
  4. Step 4: Simplify right side
    14,257.43x = 82,739,677.44
  5. Step 5: Solve for x
    x = 82,739,677.44/14,257.43
  6. Step 6: Final answer
    x = 5,803.27

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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.