Home / 11,428.49-17,143.07-3,108.47

Finding the Fourth Proportional to 11,428.49, 17,143.07 and 3,108.47

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Solution

The fourth proportional to 11,428.49, 17,143.07 and 3,108.47 is: 4,662.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,428.49 : 17,143.07 = 3,108.47 : x
  2. Step 2: Convert to fraction form
    11,428.49/17,143.07 = 3,108.47/x
  3. Step 3: Cross multiply
    11,428.49x = 17,143.07 × 3,108.47
  4. Step 4: Simplify right side
    11,428.49x = 53,288,617.55
  5. Step 5: Solve for x
    x = 53,288,617.55/11,428.49
  6. Step 6: Final answer
    x = 4,662.79

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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.