Home / 11,922.72-17,854.80-9,829.92

Finding the Fourth Proportional to 11,922.72, 17,854.80 and 9,829.92

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Solution

The fourth proportional to 11,922.72, 17,854.80 and 9,829.92 is: 14,720.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,922.72 : 17,854.80 = 9,829.92 : x
  2. Step 2: Convert to fraction form
    11,922.72/17,854.80 = 9,829.92/x
  3. Step 3: Cross multiply
    11,922.72x = 17,854.80 × 9,829.92
  4. Step 4: Simplify right side
    11,922.72x = 175,511,255.62
  5. Step 5: Solve for x
    x = 175,511,255.62/11,922.72
  6. Step 6: Final answer
    x = 14,720.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.