Home / 13,789.44-20,651.25-7,933.75

Finding the Fourth Proportional to 13,789.44, 20,651.25 and 7,933.75

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Solution

The fourth proportional to 13,789.44, 20,651.25 and 7,933.75 is: 11,881.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,789.44 : 20,651.25 = 7,933.75 : x
  2. Step 2: Convert to fraction form
    13,789.44/20,651.25 = 7,933.75/x
  3. Step 3: Cross multiply
    13,789.44x = 20,651.25 × 7,933.75
  4. Step 4: Simplify right side
    13,789.44x = 163,841,854.69
  5. Step 5: Solve for x
    x = 163,841,854.69/13,789.44
  6. Step 6: Final answer
    x = 11,881.69

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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.