Home / 11,631.36-17,427.60-9,318

Finding the Fourth Proportional to 11,631.36, 17,427.60 and 9,318

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Solution

The fourth proportional to 11,631.36, 17,427.60 and 9,318 is: 13,961.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,631.36 : 17,427.60 = 9,318 : x
  2. Step 2: Convert to fraction form
    11,631.36/17,427.60 = 9,318/x
  3. Step 3: Cross multiply
    11,631.36x = 17,427.60 × 9,318
  4. Step 4: Simplify right side
    11,631.36x = 162,390,376.80
  5. Step 5: Solve for x
    x = 162,390,376.80/11,631.36
  6. Step 6: Final answer
    x = 13,961.43

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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.