Home / 11,712.87-17,573.36-5,143.77

Finding the Fourth Proportional to 11,712.87, 17,573.36 and 5,143.77

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Solution

The fourth proportional to 11,712.87, 17,573.36 and 5,143.77 is: 7,717.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,712.87 : 17,573.36 = 5,143.77 : x
  2. Step 2: Convert to fraction form
    11,712.87/17,573.36 = 5,143.77/x
  3. Step 3: Cross multiply
    11,712.87x = 17,573.36 × 5,143.77
  4. Step 4: Simplify right side
    11,712.87x = 90,393,296.25
  5. Step 5: Solve for x
    x = 90,393,296.25/11,712.87
  6. Step 6: Final answer
    x = 7,717.43

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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.