Home / 11,474.40-17,211.60-5,318.40

Finding the Fourth Proportional to 11,474.40, 17,211.60 and 5,318.40

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Solution

The fourth proportional to 11,474.40, 17,211.60 and 5,318.40 is: 7,977.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,474.40 : 17,211.60 = 5,318.40 : x
  2. Step 2: Convert to fraction form
    11,474.40/17,211.60 = 5,318.40/x
  3. Step 3: Cross multiply
    11,474.40x = 17,211.60 × 5,318.40
  4. Step 4: Simplify right side
    11,474.40x = 91,538,173.44
  5. Step 5: Solve for x
    x = 91,538,173.44/11,474.40
  6. Step 6: Final answer
    x = 7,977.60

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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.