Home / 18,172.04-27,258.60-7,777.04

Finding the Fourth Proportional to 18,172.04, 27,258.60 and 7,777.04

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Solution

The fourth proportional to 18,172.04, 27,258.60 and 7,777.04 is: 11,665.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,172.04 : 27,258.60 = 7,777.04 : x
  2. Step 2: Convert to fraction form
    18,172.04/27,258.60 = 7,777.04/x
  3. Step 3: Cross multiply
    18,172.04x = 27,258.60 × 7,777.04
  4. Step 4: Simplify right side
    18,172.04x = 211,991,222.54
  5. Step 5: Solve for x
    x = 211,991,222.54/18,172.04
  6. Step 6: Final answer
    x = 11,665.79

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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.