Home / 18,939.29-28,402.72-6,286.14

Finding the Fourth Proportional to 18,939.29, 28,402.72 and 6,286.14

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Solution

The fourth proportional to 18,939.29, 28,402.72 and 6,286.14 is: 9,427.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,939.29 : 28,402.72 = 6,286.14 : x
  2. Step 2: Convert to fraction form
    18,939.29/28,402.72 = 6,286.14/x
  3. Step 3: Cross multiply
    18,939.29x = 28,402.72 × 6,286.14
  4. Step 4: Simplify right side
    18,939.29x = 178,543,458.59
  5. Step 5: Solve for x
    x = 178,543,458.59/18,939.29
  6. Step 6: Final answer
    x = 9,427.15

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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.