Home / 12,517.16-17,272.49-7,480.37

Finding the Fourth Proportional to 12,517.16, 17,272.49 and 7,480.37

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Solution

The fourth proportional to 12,517.16, 17,272.49 and 7,480.37 is: 10,322.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,517.16 : 17,272.49 = 7,480.37 : x
  2. Step 2: Convert to fraction form
    12,517.16/17,272.49 = 7,480.37/x
  3. Step 3: Cross multiply
    12,517.16x = 17,272.49 × 7,480.37
  4. Step 4: Simplify right side
    12,517.16x = 129,204,677.90
  5. Step 5: Solve for x
    x = 129,204,677.90/12,517.16
  6. Step 6: Final answer
    x = 10,322.21

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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.