Home / 11,661.48-17,481.68-4,260.72

Finding the Fourth Proportional to 11,661.48, 17,481.68 and 4,260.72

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Solution

The fourth proportional to 11,661.48, 17,481.68 and 4,260.72 is: 6,387.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,661.48 : 17,481.68 = 4,260.72 : x
  2. Step 2: Convert to fraction form
    11,661.48/17,481.68 = 4,260.72/x
  3. Step 3: Cross multiply
    11,661.48x = 17,481.68 × 4,260.72
  4. Step 4: Simplify right side
    11,661.48x = 74,484,543.61
  5. Step 5: Solve for x
    x = 74,484,543.61/11,661.48
  6. Step 6: Final answer
    x = 6,387.23

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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.