Home / 13,191.92-19,787.84-3,331.96

Finding the Fourth Proportional to 13,191.92, 19,787.84 and 3,331.96

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Solution

The fourth proportional to 13,191.92, 19,787.84 and 3,331.96 is: 4,997.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,191.92 : 19,787.84 = 3,331.96 : x
  2. Step 2: Convert to fraction form
    13,191.92/19,787.84 = 3,331.96/x
  3. Step 3: Cross multiply
    13,191.92x = 19,787.84 × 3,331.96
  4. Step 4: Simplify right side
    13,191.92x = 65,932,291.37
  5. Step 5: Solve for x
    x = 65,932,291.37/13,191.92
  6. Step 6: Final answer
    x = 4,997.93

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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.