Home / 13,040.97-19,561.44-3,180.33

Finding the Fourth Proportional to 13,040.97, 19,561.44 and 3,180.33

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Solution

The fourth proportional to 13,040.97, 19,561.44 and 3,180.33 is: 4,770.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,040.97 : 19,561.44 = 3,180.33 : x
  2. Step 2: Convert to fraction form
    13,040.97/19,561.44 = 3,180.33/x
  3. Step 3: Cross multiply
    13,040.97x = 19,561.44 × 3,180.33
  4. Step 4: Simplify right side
    13,040.97x = 62,211,834.48
  5. Step 5: Solve for x
    x = 62,211,834.48/13,040.97
  6. Step 6: Final answer
    x = 4,770.49

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.