Home / 12,198.52-16,834.80-7,420.33

Finding the Fourth Proportional to 12,198.52, 16,834.80 and 7,420.33

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Solution

The fourth proportional to 12,198.52, 16,834.80 and 7,420.33 is: 10,240.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,198.52 : 16,834.80 = 7,420.33 : x
  2. Step 2: Convert to fraction form
    12,198.52/16,834.80 = 7,420.33/x
  3. Step 3: Cross multiply
    12,198.52x = 16,834.80 × 7,420.33
  4. Step 4: Simplify right side
    12,198.52x = 124,919,771.48
  5. Step 5: Solve for x
    x = 124,919,771.48/12,198.52
  6. Step 6: Final answer
    x = 10,240.57

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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.