Home / 11,926.45-16,458.42-6,621.29

Finding the Fourth Proportional to 11,926.45, 16,458.42 and 6,621.29

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Solution

The fourth proportional to 11,926.45, 16,458.42 and 6,621.29 is: 9,137.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,926.45 : 16,458.42 = 6,621.29 : x
  2. Step 2: Convert to fraction form
    11,926.45/16,458.42 = 6,621.29/x
  3. Step 3: Cross multiply
    11,926.45x = 16,458.42 × 6,621.29
  4. Step 4: Simplify right side
    11,926.45x = 108,975,976.02
  5. Step 5: Solve for x
    x = 108,975,976.02/11,926.45
  6. Step 6: Final answer
    x = 9,137.33

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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.