Home / 13,197.51-18,212.07-7,229.23

Finding the Fourth Proportional to 13,197.51, 18,212.07 and 7,229.23

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Solution

The fourth proportional to 13,197.51, 18,212.07 and 7,229.23 is: 9,976.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,197.51 : 18,212.07 = 7,229.23 : x
  2. Step 2: Convert to fraction form
    13,197.51/18,212.07 = 7,229.23/x
  3. Step 3: Cross multiply
    13,197.51x = 18,212.07 × 7,229.23
  4. Step 4: Simplify right side
    13,197.51x = 131,659,224.39
  5. Step 5: Solve for x
    x = 131,659,224.39/13,197.51
  6. Step 6: Final answer
    x = 9,976.07

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Half scale
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Double scale
Find fourth proportional to 13,198.51, 18,213.45 and 7,230.23
Similar ratio
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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.