Home / 14,282.90-21,418.43-5,396.70

Finding the Fourth Proportional to 14,282.90, 21,418.43 and 5,396.70

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Solution

The fourth proportional to 14,282.90, 21,418.43 and 5,396.70 is: 8,092.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,282.90 : 21,418.43 = 5,396.70 : x
  2. Step 2: Convert to fraction form
    14,282.90/21,418.43 = 5,396.70/x
  3. Step 3: Cross multiply
    14,282.90x = 21,418.43 × 5,396.70
  4. Step 4: Simplify right side
    14,282.90x = 115,588,734.09
  5. Step 5: Solve for x
    x = 115,588,734.09/14,282.90
  6. Step 6: Final answer
    x = 8,092.81

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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.