Home / 18,782.38-28,174.03-6,303.72

Finding the Fourth Proportional to 18,782.38, 28,174.03 and 6,303.72

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Solution

The fourth proportional to 18,782.38, 28,174.03 and 6,303.72 is: 9,455.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,782.38 : 28,174.03 = 6,303.72 : x
  2. Step 2: Convert to fraction form
    18,782.38/28,174.03 = 6,303.72/x
  3. Step 3: Cross multiply
    18,782.38x = 28,174.03 × 6,303.72
  4. Step 4: Simplify right side
    18,782.38x = 177,601,286.28
  5. Step 5: Solve for x
    x = 177,601,286.28/18,782.38
  6. Step 6: Final answer
    x = 9,455.74

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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.