Home / 18,353.88-27,532.20-5,207.32

Finding the Fourth Proportional to 18,353.88, 27,532.20 and 5,207.32

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Solution

The fourth proportional to 18,353.88, 27,532.20 and 5,207.32 is: 7,811.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,353.88 : 27,532.20 = 5,207.32 : x
  2. Step 2: Convert to fraction form
    18,353.88/27,532.20 = 5,207.32/x
  3. Step 3: Cross multiply
    18,353.88x = 27,532.20 × 5,207.32
  4. Step 4: Simplify right side
    18,353.88x = 143,368,975.70
  5. Step 5: Solve for x
    x = 143,368,975.70/18,353.88
  6. Step 6: Final answer
    x = 7,811.37

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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.