Home / 11,926.82-16,458.77-6,621.53

Finding the Fourth Proportional to 11,926.82, 16,458.77 and 6,621.53

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Solution

The fourth proportional to 11,926.82, 16,458.77 and 6,621.53 is: 9,137.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,926.82 : 16,458.77 = 6,621.53 : x
  2. Step 2: Convert to fraction form
    11,926.82/16,458.77 = 6,621.53/x
  3. Step 3: Cross multiply
    11,926.82x = 16,458.77 × 6,621.53
  4. Step 4: Simplify right side
    11,926.82x = 108,982,123.92
  5. Step 5: Solve for x
    x = 108,982,123.92/11,926.82
  6. Step 6: Final answer
    x = 9,137.57

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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.