Home / 12,213.89-16,854.36-6,835.42

Finding the Fourth Proportional to 12,213.89, 16,854.36 and 6,835.42

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Solution

The fourth proportional to 12,213.89, 16,854.36 and 6,835.42 is: 9,432.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,213.89 : 16,854.36 = 6,835.42 : x
  2. Step 2: Convert to fraction form
    12,213.89/16,854.36 = 6,835.42/x
  3. Step 3: Cross multiply
    12,213.89x = 16,854.36 × 6,835.42
  4. Step 4: Simplify right side
    12,213.89x = 115,206,629.43
  5. Step 5: Solve for x
    x = 115,206,629.43/12,213.89
  6. Step 6: Final answer
    x = 9,432.43

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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.