Home / 11,926.10-16,457.28-6,620.60

Finding the Fourth Proportional to 11,926.10, 16,457.28 and 6,620.60

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Solution

The fourth proportional to 11,926.10, 16,457.28 and 6,620.60 is: 9,136.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,926.10 : 16,457.28 = 6,620.60 : x
  2. Step 2: Convert to fraction form
    11,926.10/16,457.28 = 6,620.60/x
  3. Step 3: Cross multiply
    11,926.10x = 16,457.28 × 6,620.60
  4. Step 4: Simplify right side
    11,926.10x = 108,957,067.97
  5. Step 5: Solve for x
    x = 108,957,067.97/11,926.10
  6. Step 6: Final answer
    x = 9,136.02

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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.