Home / 13,197.26-18,212.16-7,229.24

Finding the Fourth Proportional to 13,197.26, 18,212.16 and 7,229.24

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Solution

The fourth proportional to 13,197.26, 18,212.16 and 7,229.24 is: 9,976.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,197.26 : 18,212.16 = 7,229.24 : x
  2. Step 2: Convert to fraction form
    13,197.26/18,212.16 = 7,229.24/x
  3. Step 3: Cross multiply
    13,197.26x = 18,212.16 × 7,229.24
  4. Step 4: Simplify right side
    13,197.26x = 131,660,075.56
  5. Step 5: Solve for x
    x = 131,660,075.56/13,197.26
  6. Step 6: Final answer
    x = 9,976.32

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Half scale
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Double scale
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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.