Home / 18,857.60-28,286.40-4,817.66

Finding the Fourth Proportional to 18,857.60, 28,286.40 and 4,817.66

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Solution

The fourth proportional to 18,857.60, 28,286.40 and 4,817.66 is: 7,226.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,857.60 : 28,286.40 = 4,817.66 : x
  2. Step 2: Convert to fraction form
    18,857.60/28,286.40 = 4,817.66/x
  3. Step 3: Cross multiply
    18,857.60x = 28,286.40 × 4,817.66
  4. Step 4: Simplify right side
    18,857.60x = 136,274,092.30
  5. Step 5: Solve for x
    x = 136,274,092.30/18,857.60
  6. Step 6: Final answer
    x = 7,226.48

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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.