Home / 18,419.92-27,629.83-5,272.27

Finding the Fourth Proportional to 18,419.92, 27,629.83 and 5,272.27

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Solution

The fourth proportional to 18,419.92, 27,629.83 and 5,272.27 is: 7,908.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,419.92 : 27,629.83 = 5,272.27 : x
  2. Step 2: Convert to fraction form
    18,419.92/27,629.83 = 5,272.27/x
  3. Step 3: Cross multiply
    18,419.92x = 27,629.83 × 5,272.27
  4. Step 4: Simplify right side
    18,419.92x = 145,671,923.81
  5. Step 5: Solve for x
    x = 145,671,923.81/18,419.92
  6. Step 6: Final answer
    x = 7,908.39

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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.