Home / 18,015.85-27,022.15-12,773.35

Finding the Fourth Proportional to 18,015.85, 27,022.15 and 12,773.35

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Solution

The fourth proportional to 18,015.85, 27,022.15 and 12,773.35 is: 19,158.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,015.85 : 27,022.15 = 12,773.35 : x
  2. Step 2: Convert to fraction form
    18,015.85/27,022.15 = 12,773.35/x
  3. Step 3: Cross multiply
    18,015.85x = 27,022.15 × 12,773.35
  4. Step 4: Simplify right side
    18,015.85x = 345,163,379.70
  5. Step 5: Solve for x
    x = 345,163,379.70/18,015.85
  6. Step 6: Final answer
    x = 19,158.87

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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.