Home / 15,067.58-20,789.13-9,403.23

Finding the Fourth Proportional to 15,067.58, 20,789.13 and 9,403.23

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Solution

The fourth proportional to 15,067.58, 20,789.13 and 9,403.23 is: 12,973.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,067.58 : 20,789.13 = 9,403.23 : x
  2. Step 2: Convert to fraction form
    15,067.58/20,789.13 = 9,403.23/x
  3. Step 3: Cross multiply
    15,067.58x = 20,789.13 × 9,403.23
  4. Step 4: Simplify right side
    15,067.58x = 195,485,084.11
  5. Step 5: Solve for x
    x = 195,485,084.11/15,067.58
  6. Step 6: Final answer
    x = 12,973.89

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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.