Home / 18,520.18-27,773.69-6,670.77

Finding the Fourth Proportional to 18,520.18, 27,773.69 and 6,670.77

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Solution

The fourth proportional to 18,520.18, 27,773.69 and 6,670.77 is: 10,003.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,520.18 : 27,773.69 = 6,670.77 : x
  2. Step 2: Convert to fraction form
    18,520.18/27,773.69 = 6,670.77/x
  3. Step 3: Cross multiply
    18,520.18x = 27,773.69 × 6,670.77
  4. Step 4: Simplify right side
    18,520.18x = 185,271,760.54
  5. Step 5: Solve for x
    x = 185,271,760.54/18,520.18
  6. Step 6: Final answer
    x = 10,003.78

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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.