Home / 14,140.92-21,213.72-4,781.82

Finding the Fourth Proportional to 14,140.92, 21,213.72 and 4,781.82

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Solution

The fourth proportional to 14,140.92, 21,213.72 and 4,781.82 is: 7,173.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,140.92 : 21,213.72 = 4,781.82 : x
  2. Step 2: Convert to fraction form
    14,140.92/21,213.72 = 4,781.82/x
  3. Step 3: Cross multiply
    14,140.92x = 21,213.72 × 4,781.82
  4. Step 4: Simplify right side
    14,140.92x = 101,440,190.57
  5. Step 5: Solve for x
    x = 101,440,190.57/14,140.92
  6. Step 6: Final answer
    x = 7,173.52

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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.