Home / 14,149.24-21,223.62-4,915

Finding the Fourth Proportional to 14,149.24, 21,223.62 and 4,915

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Solution

The fourth proportional to 14,149.24, 21,223.62 and 4,915 is: 7,372.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,149.24 : 21,223.62 = 4,915 : x
  2. Step 2: Convert to fraction form
    14,149.24/21,223.62 = 4,915/x
  3. Step 3: Cross multiply
    14,149.24x = 21,223.62 × 4,915
  4. Step 4: Simplify right side
    14,149.24x = 104,314,092.30
  5. Step 5: Solve for x
    x = 104,314,092.30/14,149.24
  6. Step 6: Final answer
    x = 7,372.42

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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.