Home / 12,198.96-16,822.26-9,953.64

Finding the Fourth Proportional to 12,198.96, 16,822.26 and 9,953.64

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Solution

The fourth proportional to 12,198.96, 16,822.26 and 9,953.64 is: 13,725.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,198.96 : 16,822.26 = 9,953.64 : x
  2. Step 2: Convert to fraction form
    12,198.96/16,822.26 = 9,953.64/x
  3. Step 3: Cross multiply
    12,198.96x = 16,822.26 × 9,953.64
  4. Step 4: Simplify right side
    12,198.96x = 167,442,720.03
  5. Step 5: Solve for x
    x = 167,442,720.03/12,198.96
  6. Step 6: Final answer
    x = 13,725.98

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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.