Home / 14,490.23-21,737.16-5,128.05

Finding the Fourth Proportional to 14,490.23, 21,737.16 and 5,128.05

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Solution

The fourth proportional to 14,490.23, 21,737.16 and 5,128.05 is: 7,692.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,490.23 : 21,737.16 = 5,128.05 : x
  2. Step 2: Convert to fraction form
    14,490.23/21,737.16 = 5,128.05/x
  3. Step 3: Cross multiply
    14,490.23x = 21,737.16 × 5,128.05
  4. Step 4: Simplify right side
    14,490.23x = 111,469,163.08
  5. Step 5: Solve for x
    x = 111,469,163.08/14,490.23
  6. Step 6: Final answer
    x = 7,692.71

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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.