Home / 11,352.12-17,018.60-5,425.65

Finding the Fourth Proportional to 11,352.12, 17,018.60 and 5,425.65

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Solution

The fourth proportional to 11,352.12, 17,018.60 and 5,425.65 is: 8,133.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,352.12 : 17,018.60 = 5,425.65 : x
  2. Step 2: Convert to fraction form
    11,352.12/17,018.60 = 5,425.65/x
  3. Step 3: Cross multiply
    11,352.12x = 17,018.60 × 5,425.65
  4. Step 4: Simplify right side
    11,352.12x = 92,336,939.96
  5. Step 5: Solve for x
    x = 92,336,939.96/11,352.12
  6. Step 6: Final answer
    x = 8,133.89

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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.