Home / 14,629.56-21,912.86-8,372

Finding the Fourth Proportional to 14,629.56, 21,912.86 and 8,372

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Solution

The fourth proportional to 14,629.56, 21,912.86 and 8,372 is: 12,539.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,629.56 : 21,912.86 = 8,372 : x
  2. Step 2: Convert to fraction form
    14,629.56/21,912.86 = 8,372/x
  3. Step 3: Cross multiply
    14,629.56x = 21,912.86 × 8,372
  4. Step 4: Simplify right side
    14,629.56x = 183,454,463.92
  5. Step 5: Solve for x
    x = 183,454,463.92/14,629.56
  6. Step 6: Final answer
    x = 12,539.99

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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.