Home / 13,163.09-18,164.44-7,194.76

Finding the Fourth Proportional to 13,163.09, 18,164.44 and 7,194.76

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Solution

The fourth proportional to 13,163.09, 18,164.44 and 7,194.76 is: 9,928.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,163.09 : 18,164.44 = 7,194.76 : x
  2. Step 2: Convert to fraction form
    13,163.09/18,164.44 = 7,194.76/x
  3. Step 3: Cross multiply
    13,163.09x = 18,164.44 × 7,194.76
  4. Step 4: Simplify right side
    13,163.09x = 130,688,795.77
  5. Step 5: Solve for x
    x = 130,688,795.77/13,163.09
  6. Step 6: Final answer
    x = 9,928.43

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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.