Home / 17,121.36-23,620.97-12,655.83

Finding the Fourth Proportional to 17,121.36, 23,620.97 and 12,655.83

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Solution

The fourth proportional to 17,121.36, 23,620.97 and 12,655.83 is: 17,460.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,121.36 : 23,620.97 = 12,655.83 : x
  2. Step 2: Convert to fraction form
    17,121.36/23,620.97 = 12,655.83/x
  3. Step 3: Cross multiply
    17,121.36x = 23,620.97 × 12,655.83
  4. Step 4: Simplify right side
    17,121.36x = 298,943,012.39
  5. Step 5: Solve for x
    x = 298,943,012.39/17,121.36
  6. Step 6: Final answer
    x = 17,460.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.