Home / 11,661.77-16,093.55-7,188.48

Finding the Fourth Proportional to 11,661.77, 16,093.55 and 7,188.48

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Solution

The fourth proportional to 11,661.77, 16,093.55 and 7,188.48 is: 9,920.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,661.77 : 16,093.55 = 7,188.48 : x
  2. Step 2: Convert to fraction form
    11,661.77/16,093.55 = 7,188.48/x
  3. Step 3: Cross multiply
    11,661.77x = 16,093.55 × 7,188.48
  4. Step 4: Simplify right side
    11,661.77x = 115,688,180.28
  5. Step 5: Solve for x
    x = 115,688,180.28/11,661.77
  6. Step 6: Final answer
    x = 9,920.29

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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.