Home / 11,515.18-17,270.26-4,120.14

Finding the Fourth Proportional to 11,515.18, 17,270.26 and 4,120.14

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Solution

The fourth proportional to 11,515.18, 17,270.26 and 4,120.14 is: 6,179.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,515.18 : 17,270.26 = 4,120.14 : x
  2. Step 2: Convert to fraction form
    11,515.18/17,270.26 = 4,120.14/x
  3. Step 3: Cross multiply
    11,515.18x = 17,270.26 × 4,120.14
  4. Step 4: Simplify right side
    11,515.18x = 71,155,889.04
  5. Step 5: Solve for x
    x = 71,155,889.04/11,515.18
  6. Step 6: Final answer
    x = 6,179.31

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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.