Home / 11,617.06-16,029.20-7,141.54

Finding the Fourth Proportional to 11,617.06, 16,029.20 and 7,141.54

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Solution

The fourth proportional to 11,617.06, 16,029.20 and 7,141.54 is: 9,853.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,617.06 : 16,029.20 = 7,141.54 : x
  2. Step 2: Convert to fraction form
    11,617.06/16,029.20 = 7,141.54/x
  3. Step 3: Cross multiply
    11,617.06x = 16,029.20 × 7,141.54
  4. Step 4: Simplify right side
    11,617.06x = 114,473,172.97
  5. Step 5: Solve for x
    x = 114,473,172.97/11,617.06
  6. Step 6: Final answer
    x = 9,853.88

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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.