Home / 11,935.46-17,901.79-3,171.05

Finding the Fourth Proportional to 11,935.46, 17,901.79 and 3,171.05

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Solution

The fourth proportional to 11,935.46, 17,901.79 and 3,171.05 is: 4,756.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,935.46 : 17,901.79 = 3,171.05 : x
  2. Step 2: Convert to fraction form
    11,935.46/17,901.79 = 3,171.05/x
  3. Step 3: Cross multiply
    11,935.46x = 17,901.79 × 3,171.05
  4. Step 4: Simplify right side
    11,935.46x = 56,767,471.18
  5. Step 5: Solve for x
    x = 56,767,471.18/11,935.46
  6. Step 6: Final answer
    x = 4,756.20

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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.