Home / 18,219.81-27,336.60-7,134.42

Finding the Fourth Proportional to 18,219.81, 27,336.60 and 7,134.42

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Solution

The fourth proportional to 18,219.81, 27,336.60 and 7,134.42 is: 10,704.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,219.81 : 27,336.60 = 7,134.42 : x
  2. Step 2: Convert to fraction form
    18,219.81/27,336.60 = 7,134.42/x
  3. Step 3: Cross multiply
    18,219.81x = 27,336.60 × 7,134.42
  4. Step 4: Simplify right side
    18,219.81x = 195,030,785.77
  5. Step 5: Solve for x
    x = 195,030,785.77/18,219.81
  6. Step 6: Final answer
    x = 10,704.33

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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.