Home / 12,198.24-16,821-10,435.68

Finding the Fourth Proportional to 12,198.24, 16,821 and 10,435.68

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Solution

The fourth proportional to 12,198.24, 16,821 and 10,435.68 is: 14,390.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,198.24 : 16,821 = 10,435.68 : x
  2. Step 2: Convert to fraction form
    12,198.24/16,821 = 10,435.68/x
  3. Step 3: Cross multiply
    12,198.24x = 16,821 × 10,435.68
  4. Step 4: Simplify right side
    12,198.24x = 175,538,573.28
  5. Step 5: Solve for x
    x = 175,538,573.28/12,198.24
  6. Step 6: Final answer
    x = 14,390.48

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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.