Home / 14,665.20-21,997.59-3,571.89

Finding the Fourth Proportional to 14,665.20, 21,997.59 and 3,571.89

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Solution

The fourth proportional to 14,665.20, 21,997.59 and 3,571.89 is: 5,357.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,665.20 : 21,997.59 = 3,571.89 : x
  2. Step 2: Convert to fraction form
    14,665.20/21,997.59 = 3,571.89/x
  3. Step 3: Cross multiply
    14,665.20x = 21,997.59 × 3,571.89
  4. Step 4: Simplify right side
    14,665.20x = 78,572,971.75
  5. Step 5: Solve for x
    x = 78,572,971.75/14,665.20
  6. Step 6: Final answer
    x = 5,357.78

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1.5x scale

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.