Home / 17,921.96-26,874.22-5,439.72

Finding the Fourth Proportional to 17,921.96, 26,874.22 and 5,439.72

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Solution

The fourth proportional to 17,921.96, 26,874.22 and 5,439.72 is: 8,156.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,921.96 : 26,874.22 = 5,439.72 : x
  2. Step 2: Convert to fraction form
    17,921.96/26,874.22 = 5,439.72/x
  3. Step 3: Cross multiply
    17,921.96x = 26,874.22 × 5,439.72
  4. Step 4: Simplify right side
    17,921.96x = 146,188,232.02
  5. Step 5: Solve for x
    x = 146,188,232.02/17,921.96
  6. Step 6: Final answer
    x = 8,156.93

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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.