Home / 11,589.24-15,987.30-7,609.80

Finding the Fourth Proportional to 11,589.24, 15,987.30 and 7,609.80

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Solution

The fourth proportional to 11,589.24, 15,987.30 and 7,609.80 is: 10,497.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,589.24 : 15,987.30 = 7,609.80 : x
  2. Step 2: Convert to fraction form
    11,589.24/15,987.30 = 7,609.80/x
  3. Step 3: Cross multiply
    11,589.24x = 15,987.30 × 7,609.80
  4. Step 4: Simplify right side
    11,589.24x = 121,660,155.54
  5. Step 5: Solve for x
    x = 121,660,155.54/11,589.24
  6. Step 6: Final answer
    x = 10,497.68

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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.