Home / 12,021.42-16,589.79-6,716.19

Finding the Fourth Proportional to 12,021.42, 16,589.79 and 6,716.19

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Solution

The fourth proportional to 12,021.42, 16,589.79 and 6,716.19 is: 9,268.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,021.42 : 16,589.79 = 6,716.19 : x
  2. Step 2: Convert to fraction form
    12,021.42/16,589.79 = 6,716.19/x
  3. Step 3: Cross multiply
    12,021.42x = 16,589.79 × 6,716.19
  4. Step 4: Simplify right side
    12,021.42x = 111,420,181.70
  5. Step 5: Solve for x
    x = 111,420,181.70/12,021.42
  6. Step 6: Final answer
    x = 9,268.47

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.