Home / 11,174.66-15,420.26-6,696.17

Finding the Fourth Proportional to 11,174.66, 15,420.26 and 6,696.17

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Solution

The fourth proportional to 11,174.66, 15,420.26 and 6,696.17 is: 9,240.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,174.66 : 15,420.26 = 6,696.17 : x
  2. Step 2: Convert to fraction form
    11,174.66/15,420.26 = 6,696.17/x
  3. Step 3: Cross multiply
    11,174.66x = 15,420.26 × 6,696.17
  4. Step 4: Simplify right side
    11,174.66x = 103,256,571.82
  5. Step 5: Solve for x
    x = 103,256,571.82/11,174.66
  6. Step 6: Final answer
    x = 9,240.25

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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.