Home / 7,515.31-11,273.37-3,133.21

Finding the Fourth Proportional to 7,515.31, 11,273.37 and 3,133.21

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Solution

The fourth proportional to 7,515.31, 11,273.37 and 3,133.21 is: 4,699.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,515.31 : 11,273.37 = 3,133.21 : x
  2. Step 2: Convert to fraction form
    7,515.31/11,273.37 = 3,133.21/x
  3. Step 3: Cross multiply
    7,515.31x = 11,273.37 × 3,133.21
  4. Step 4: Simplify right side
    7,515.31x = 35,321,835.62
  5. Step 5: Solve for x
    x = 35,321,835.62/7,515.31
  6. Step 6: Final answer
    x = 4,699.98

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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.