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Finding the Fourth Proportional to 16,640.36, 24,965.03 and 7,281.21

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Solution

The fourth proportional to 16,640.36, 24,965.03 and 7,281.21 is: 10,923.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,640.36 : 24,965.03 = 7,281.21 : x
  2. Step 2: Convert to fraction form
    16,640.36/24,965.03 = 7,281.21/x
  3. Step 3: Cross multiply
    16,640.36x = 24,965.03 × 7,281.21
  4. Step 4: Simplify right side
    16,640.36x = 181,775,626.09
  5. Step 5: Solve for x
    x = 181,775,626.09/16,640.36
  6. Step 6: Final answer
    x = 10,923.78

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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.