Home / 12,375.11-17,054.75-8,790.23

Finding the Fourth Proportional to 12,375.11, 17,054.75 and 8,790.23

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Solution

The fourth proportional to 12,375.11, 17,054.75 and 8,790.23 is: 12,114.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,375.11 : 17,054.75 = 8,790.23 : x
  2. Step 2: Convert to fraction form
    12,375.11/17,054.75 = 8,790.23/x
  3. Step 3: Cross multiply
    12,375.11x = 17,054.75 × 8,790.23
  4. Step 4: Simplify right side
    12,375.11x = 149,915,175.09
  5. Step 5: Solve for x
    x = 149,915,175.09/12,375.11
  6. Step 6: Final answer
    x = 12,114.25

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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.