Home / 18,982.29-28,474.20-7,134.83

Finding the Fourth Proportional to 18,982.29, 28,474.20 and 7,134.83

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Solution

The fourth proportional to 18,982.29, 28,474.20 and 7,134.83 is: 10,702.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,982.29 : 28,474.20 = 7,134.83 : x
  2. Step 2: Convert to fraction form
    18,982.29/28,474.20 = 7,134.83/x
  3. Step 3: Cross multiply
    18,982.29x = 28,474.20 × 7,134.83
  4. Step 4: Simplify right side
    18,982.29x = 203,158,434.02
  5. Step 5: Solve for x
    x = 203,158,434.02/18,982.29
  6. Step 6: Final answer
    x = 10,702.53

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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.