Home / 18,586.17-27,879.27-5,438.55

Finding the Fourth Proportional to 18,586.17, 27,879.27 and 5,438.55

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Solution

The fourth proportional to 18,586.17, 27,879.27 and 5,438.55 is: 8,157.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,586.17 : 27,879.27 = 5,438.55 : x
  2. Step 2: Convert to fraction form
    18,586.17/27,879.27 = 5,438.55/x
  3. Step 3: Cross multiply
    18,586.17x = 27,879.27 × 5,438.55
  4. Step 4: Simplify right side
    18,586.17x = 151,622,803.86
  5. Step 5: Solve for x
    x = 151,622,803.86/18,586.17
  6. Step 6: Final answer
    x = 8,157.83

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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.