Home / 11,388.74-15,698.49-8,589.38

Finding the Fourth Proportional to 11,388.74, 15,698.49 and 8,589.38

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Solution

The fourth proportional to 11,388.74, 15,698.49 and 8,589.38 is: 11,839.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,388.74 : 15,698.49 = 8,589.38 : x
  2. Step 2: Convert to fraction form
    11,388.74/15,698.49 = 8,589.38/x
  3. Step 3: Cross multiply
    11,388.74x = 15,698.49 × 8,589.38
  4. Step 4: Simplify right side
    11,388.74x = 134,840,296.04
  5. Step 5: Solve for x
    x = 134,840,296.04/11,388.74
  6. Step 6: Final answer
    x = 11,839.79

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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.