Home / 10,308.38-15,453.39-5,040.55

Finding the Fourth Proportional to 10,308.38, 15,453.39 and 5,040.55

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Solution

The fourth proportional to 10,308.38, 15,453.39 and 5,040.55 is: 7,556.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,308.38 : 15,453.39 = 5,040.55 : x
  2. Step 2: Convert to fraction form
    10,308.38/15,453.39 = 5,040.55/x
  3. Step 3: Cross multiply
    10,308.38x = 15,453.39 × 5,040.55
  4. Step 4: Simplify right side
    10,308.38x = 77,893,584.96
  5. Step 5: Solve for x
    x = 77,893,584.96/10,308.38
  6. Step 6: Final answer
    x = 7,556.34

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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.