Home / 11,899.68-16,418.52-7,425.60

Finding the Fourth Proportional to 11,899.68, 16,418.52 and 7,425.60

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Solution

The fourth proportional to 11,899.68, 16,418.52 and 7,425.60 is: 10,245.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,899.68 : 16,418.52 = 7,425.60 : x
  2. Step 2: Convert to fraction form
    11,899.68/16,418.52 = 7,425.60/x
  3. Step 3: Cross multiply
    11,899.68x = 16,418.52 × 7,425.60
  4. Step 4: Simplify right side
    11,899.68x = 121,917,362.11
  5. Step 5: Solve for x
    x = 121,917,362.11/11,899.68
  6. Step 6: Final answer
    x = 10,245.43

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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.