Home / 11,433.36-17,138.40-5,197.80

Finding the Fourth Proportional to 11,433.36, 17,138.40 and 5,197.80

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Solution

The fourth proportional to 11,433.36, 17,138.40 and 5,197.80 is: 7,791.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,433.36 : 17,138.40 = 5,197.80 : x
  2. Step 2: Convert to fraction form
    11,433.36/17,138.40 = 5,197.80/x
  3. Step 3: Cross multiply
    11,433.36x = 17,138.40 × 5,197.80
  4. Step 4: Simplify right side
    11,433.36x = 89,081,975.52
  5. Step 5: Solve for x
    x = 89,081,975.52/11,433.36
  6. Step 6: Final answer
    x = 7,791.41

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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.