Home / 12,517.58-17,272.76-7,480.64

Finding the Fourth Proportional to 12,517.58, 17,272.76 and 7,480.64

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Solution

The fourth proportional to 12,517.58, 17,272.76 and 7,480.64 is: 10,322.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,517.58 : 17,272.76 = 7,480.64 : x
  2. Step 2: Convert to fraction form
    12,517.58/17,272.76 = 7,480.64/x
  3. Step 3: Cross multiply
    12,517.58x = 17,272.76 × 7,480.64
  4. Step 4: Simplify right side
    12,517.58x = 129,211,175.60
  5. Step 5: Solve for x
    x = 129,211,175.60/12,517.58
  6. Step 6: Final answer
    x = 10,322.38

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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.