Home / 11,926.11-16,458.57-6,621

Finding the Fourth Proportional to 11,926.11, 16,458.57 and 6,621

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Solution

The fourth proportional to 11,926.11, 16,458.57 and 6,621 is: 9,137.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,926.11 : 16,458.57 = 6,621 : x
  2. Step 2: Convert to fraction form
    11,926.11/16,458.57 = 6,621/x
  3. Step 3: Cross multiply
    11,926.11x = 16,458.57 × 6,621
  4. Step 4: Simplify right side
    11,926.11x = 108,972,191.97
  5. Step 5: Solve for x
    x = 108,972,191.97/11,926.11
  6. Step 6: Final answer
    x = 9,137.28

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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.